#A63540#A63540
#A63540 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.8% C 0.148 H 18.8°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).
Color values
| HEX | #A63540 |
|---|---|
| RGB | rgb(166, 53, 64) |
| HSL | hsl(354, 52%, 43%) |
| HSV | hsv(354, 68%, 65%) |
| CMYK | cmyk(0%, 68.1%, 61.4%, 34.9%) |
| CIE-LAB | lab(39.62, 46.98, 19.65) |
| CIE-LCH | lch(39.62, 50.93, 22.70°) |
| OKLab | oklab(49.78% 0.1399 0.0477) |
| OKLCH | oklch(49.78% 0.148 18.8) |
| XYZ | xyz(17.9261, 11.0258, 6.0337) |
| Luminance | 0.1102 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rouge
#AB1239
ΔE00 4.42
Rose Red
#BE013C
ΔE00 5.32
Cardinal
#C41E3A
ΔE00 5.71
Brown
#A52A2A
ΔE00 5.72
Dusty Red
#B9484E
ΔE00 6.18
Lipstick Red
#C0022F
ΔE00 6.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A63540 #35A69B
analogous
#A63579 #A63540 #A66235
triadic
#A63540 #40A635 #3540A6
tetradic
#A63540 #79A635 #35A69B #6235A6
square
#A63540 #79A635 #35A69B #6235A6
split-complementary
#A63540 #35A662 #3579A6
monochromatic
#49171C #78262E #A63540 #C7515C #D67F88
Accessibility & contrast
On white
6.55
#A63540 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.20
#A63540 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #A63540
6.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A63540 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A63540 | 1.00 | 6.55 | 3.20 | 6.55 |
| #FFFFFF | 6.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.20 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#524E40
Deuteranopia (green-blind)
#6F663D
Tritanopia (blue-blind)
#B61B3A
Achromatopsia (no color)
#5D5D5D
Design tokens & code
CSS
--color: #a63540; /* rgb */ color: rgb(166, 53, 64); /* oklch */ color: oklch(49.8% 0.148 18.8);
Tailwind
colors: {
custom: {
50: '#c77374',
500: '#a63540',
950: '#000000',
},
}SCSS
$custom: #a63540; $custom-light: #c77374; $custom-dark: #000000;
JSON
{
"hex": "#a63540",
"rgb": {
"r": 166,
"g": 53,
"b": 64
},
"hsl": {
"h": 354.159,
"s": 51.598,
"l": 42.941
},
"oklch": {
"l": 0.49775,
"c": 0.14781,
"h": 18.8
},
"luminance": 0.11023
}Semantic roles & 50–950 ramp
primary
#A63540
secondary
#77BFB8
accent
#DBCD4D
background
#FDF7F7
surface
#FAEDED
border
#D3C8C8
text
#140808
muted
#837B7B