#A63038#A63038

#A63038 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.1% C 0.154 H 21.3°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#A63038
RGB	rgb(166, 48, 56)
HSL	hsl(356, 55%, 42%)
HSV	hsv(356, 71%, 65%)
CMYK	cmyk(0%, 71.1%, 66.3%, 34.9%)
CIE-LAB	lab(38.74, 48.49, 23.50)
CIE-LCH	lch(38.74, 53.88, 25.85°)
OKLab	oklab(49.07% 0.1431 0.0557)
OKLCH	oklch(49.07% 0.154 21.3)
XYZ	xyz(17.4985, 10.5090, 4.8476)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63038 #30A69E

analogous

#A63073 #A63038 #A66330

triadic

#A63038 #38A630 #3038A6

tetradic

#A63038 #73A630 #30A69E #6330A6

square

#A63038 #73A630 #30A69E #6330A6

split-complementary

#A63038 #30A663 #3073A6

monochromatic

#471518 #772228 #A63038 #CA4952 #D8787F

Accessibility & contrast

On white

6.77

#A63038 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A63038 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63038

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63038	#FFFFFF	#000000	##FFFFFF
##A63038	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B37

Deuteranopia (green-blind)

#6E6435

Tritanopia (blue-blind)

#B60B34

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a63038;
/* rgb */ color: rgb(166, 48, 56);
/* oklch */ color: oklch(49.1% 0.154 21.3);

Tailwind

colors: {
  custom: {
    50: '#c7716e',
    500: '#a63038',
    950: '#000000',
  },
}

SCSS

$custom: #a63038;
$custom-light: #c7716e;
$custom-dark: #000000;

JSON

{
  "hex": "#a63038",
  "rgb": {
    "r": 166,
    "g": 48,
    "b": 56
  },
  "hsl": {
    "h": 355.932,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49069,
    "c": 0.15357,
    "h": 21.3
  },
  "luminance": 0.10506
}

Semantic roles & 50–950 ramp

primary

#A63038

secondary

#71C0BB

accent

#DED449

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A63038

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →