#FF1744

Crimson

#FF1744Crimson

Luminance

0.223

Category

Red

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#FF1744
No #
FF1744

RGB

RGB
rgb(255, 23, 68)
Values
R:255 G:23 B:68

HSL

HSL
hsl(348, 100%, 55%)
Values
H:348° S:100% L:55%

HSV / HSB

HSV
hsv(348, 91%, 100%)
Values
H:348° S:91% V:100%

CMYK

CMYK
cmyk(0%, 91%, 73%, 0%)
Values
C:0 M:91 Y:73 K:0

LAB

LAB
lab(54, 79, 39)
Values
L:54 a:79 b:39

OKLCH

OKLCH
oklch(63.7% 0.249 20.7)
Values
L:63.7% C:0.249 H:20.7°

Code Formats

CSS
color: #FF1744;
Swift
UIColor(red: 1.000, green: 0.090, blue: 0.267, alpha: 1.0)
Kotlin
Color(0xFFFF1744)
Flutter
Color(0xFFFF1744)
Android
#FFFF1744

Contrast Analysis

WCAG compliance with grayscale colors

On White

3.85:1

AA-large

On Black

5.46:1

AA

Grayscale Contrast

Aa

0%

5.5

AA
Aa

10%

4.5

AA
Aa

20%

3.3

AA-large
Aa

30%

2.2

Fail
Aa

40%

1.5

Fail
Aa

50%

1.0

Fail
Aa

60%

1.4

Fail
Aa

70%

1.8

Fail
Aa

80%

2.4

Fail
Aa

90%

3.1

AA-large
Aa

100%

3.8

AA-large

Best Grayscale Contrast

#000000 with ratio 5.46:1

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, #FF8099 0%, #B30024 100%)
OKLCH
linear-gradient(90deg, oklch(75.0% 0.156 9.2) 0%, oklch(48.4% 0.195 22.7) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #FF4D70 0%, #E6002E 100%)
OKLCH
linear-gradient(135deg, oklch(67.9% 0.213 13.7) 0%, oklch(58.3% 0.236 23.4) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #FF1744 0%, #1AFFD1 100%)
OKLCH
linear-gradient(90deg, oklch(63.7% 0.249 20.7) 0%, oklch(89.3% 0.169 173.0) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #FF1ABA 0%, #FF1744 50%, #FF5E1A 100%)
OKLCH
linear-gradient(90deg, oklch(67.1% 0.276 345.4) 0%, oklch(63.7% 0.249 20.7) 50%, oklch(68.7% 0.208 39.4) 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, #FF1A47 0%, #340912 100%)
OKLCH
linear-gradient(180deg, oklch(63.9% 0.248 20.2) 0%, oklch(22.2% 0.069 12.5) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #FF6685 0%, #CC0029 100%)
OKLCH
radial-gradient(circle, oklch(71.1% 0.187 10.8) 0%, oklch(53.3% 0.215 23.0) 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