#A64037#A64037

#A64037 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.0% C 0.137 H 27.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#A64037
RGB	rgb(166, 64, 55)
HSL	hsl(5, 50%, 43%)
HSV	hsv(5, 67%, 65%)
CMYK	cmyk(0%, 61.4%, 66.9%, 34.9%)
CIE-LAB	lab(41.30, 41.48, 27.27)
CIE-LCH	lch(41.30, 49.64, 33.32°)
OKLab	oklab(50.98% 0.1208 0.064)
OKLCH	oklch(50.98% 0.137 27.9)
XYZ	xyz(18.2507, 12.0521, 4.9789)
Luminance	0.1205 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A64037 #379DA6

analogous

#A63765 #A64037 #A67737

triadic

#A64037 #37A640 #4037A6

tetradic

#A64037 #65A637 #379DA6 #7737A6

square

#A64037 #65A637 #379DA6 #7737A6

split-complementary

#A64037 #37A677 #3765A6

monochromatic

#4A1D19 #782E28 #A64037 #C65D54 #D68982

Accessibility & contrast

On white

6.16

#A64037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#A64037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A64037

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A64037	#FFFFFF	#000000	##FFFFFF
##A64037	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5436

Deuteranopia (green-blind)

#746A34

Tritanopia (blue-blind)

#B62A3E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a64037;
/* rgb */ color: rgb(166, 64, 55);
/* oklch */ color: oklch(51.0% 0.137 27.9);

Tailwind

colors: {
  custom: {
    50: '#c7796e',
    500: '#a64037',
    950: '#000000',
  },
}

SCSS

$custom: #a64037;
$custom-light: #c7796e;
$custom-dark: #000000;

JSON

{
  "hex": "#a64037",
  "rgb": {
    "r": 166,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 4.865,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50981,
    "c": 0.13669,
    "h": 27.9
  },
  "luminance": 0.1205
}

Semantic roles & 50–950 ramp

primary

#A64037

secondary

#7AB9BF

accent

#CEDA4E

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#140907

muted

#837B7A

Preview Lab

Preview with #A64037

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

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