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Pixeliro

#CB3837

Fire Brick

#CB3837Fire Brick

Luminance

0.158

Category

Red

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#CB3837
No #
CB3837

RGB

RGB
rgb(203, 56, 55)
Values
R:203 G:56 B:55

HSL

HSL
hsl(0, 59%, 51%)
Values
H:0° S:59% L:51%

HSV / HSB

HSV
hsv(0, 73%, 80%)
Values
H:0° S:73% V:80%

CMYK

CMYK
cmyk(0%, 72%, 73%, 20%)
Values
C:0 M:72 Y:73 K:20

LAB

LAB
lab(47, 57, 35)
Values
L:47 a:57 b:35

OKLCH

OKLCH
oklch(56.3% 0.184 25.7)
Values
L:56.3% C:0.184 H:25.7°

Code Formats

CSS
color: #CB3837;
Swift
UIColor(red: 0.796, green: 0.220, blue: 0.216, alpha: 1.0)
Kotlin
Color(0xFFCB3837)
Flutter
Color(0xFFCB3837)
Android
#FFCB3837

Contrast Analysis

WCAG compliance with grayscale colors

On White

5.05:1

AA

On Black

4.16:1

AA-large

Grayscale Contrast

Aa

0%

4.2

AA-large
Aa

10%

3.4

AA-large
Aa

20%

2.5

Fail
Aa

30%

1.7

Fail
Aa

40%

1.1

Fail
Aa

50%

1.3

Fail
Aa

60%

1.8

Fail
Aa

70%

2.4

Fail
Aa

80%

3.1

AA-large
Aa

90%

4.0

AA-large
Aa

100%

5.0

AA

Best Grayscale Contrast

#FFFFFF with ratio 5.05:1

Aa

Color Harmonies

Harmonious color combinations

complementary

Two colors opposite on the color wheel (180°)

split-complementary

Base color + two colors adjacent to its complement

triadic

Three colors evenly spaced (120° apart)

tetradic

Four colors evenly spaced (90° apart)

analogous

Three colors adjacent on the color wheel (30° apart)

Color Variations

Tints, shades, tones, and full scale

Color Scale (50-900)

50

100

200

300

400

500

600

700

800

900

Tints (Lighter)

Shades (Darker)

Tones (Desaturated)

Gradients (OKLCH)

Primary

90°
CSS
linear-gradient(90deg, #E18989 0%, #7E2020 100%)
OKLCH
linear-gradient(90deg, oklch(72.2% 0.108 20.0) 0%, oklch(39.7% 0.129 25.2) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #E55252 0%, #C01111 100%)
OKLCH
linear-gradient(135deg, oklch(63.7% 0.183 23.9) 0%, oklch(51.3% 0.203 28.4) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #CB3837 0%, #38CCCC 100%)
OKLCH
linear-gradient(90deg, oklch(56.3% 0.184 25.7) 0%, oklch(77.1% 0.120 195.0) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #CC3882 0%, #CB3837 50%, #CC8238 100%)
OKLCH
linear-gradient(90deg, oklch(58.3% 0.195 354.4) 0%, oklch(56.3% 0.184 25.7) 50%, oklch(67.1% 0.127 62.3) 100%)
Stops
0%
50%
100%

Sunset

90°
CSS
linear-gradient(90deg, #F6CE55 0%, #EE6C2B 50%, #E6193C 100%)
OKLCH
linear-gradient(90deg, oklch(86.4% 0.144 90.6) 0%, oklch(68.0% 0.177 43.8) 50%, oklch(59.1% 0.228 21.2) 100%)
Stops
0%
50%
100%

Ocean

135°
CSS
linear-gradient(135deg, #19A1E6 0%, #22C3B6 50%, #47D1A3 100%)
OKLCH
linear-gradient(135deg, oklch(67.5% 0.146 238.9) 0%, oklch(73.8% 0.124 186.2) 50%, oklch(77.5% 0.136 166.9) 100%)
Stops
0%
50%
100%

Dark Mode

180°
CSS
linear-gradient(180deg, #CC3838 0%, #271616 100%)
OKLCH
linear-gradient(180deg, oklch(56.5% 0.185 25.4) 0%, oklch(22.3% 0.028 19.5) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #DB7575 0%, #922626 100%)
OKLCH
radial-gradient(circle, oklch(67.8% 0.128 21.0) 0%, oklch(44.2% 0.144 25.3) 100%)
Stops
0%
100%

💡 About OKLCH Gradients

OKLCH (Oklch Color Space) provides perceptually uniform gradients with better color transitions than traditional RGB/HSL gradients. The format is oklch(L% C H) where L = Lightness (0-100%), C = Chroma (0-0.4), H = Hue (0-360°).

Generate Full Palette

Create a complete brand palette from this color with primary, secondary, accent, and neutral scales.

View Palette