#A1901B#A1901B

#A1901B is a light, vivid yellow. Relative luminance 0.276; OKLCH L 64.9% C 0.128 H 100.3°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#A1901B
RGB	rgb(161, 144, 27)
HSL	hsl(52, 71%, 37%)
HSV	hsv(52, 83%, 63%)
CMYK	cmyk(0%, 10.6%, 83.2%, 36.9%)
CIE-LAB	lab(59.53, -5.75, 58.34)
CIE-LCH	lch(59.53, 58.63, 95.63°)
OKLab	oklab(64.92% -0.0228 0.1256)
OKLCH	oklch(64.92% 0.128 100.3)
XYZ	xyz(24.8703, 27.6040, 5.0548)
Luminance	0.2760 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1901B #1B2CA1

analogous

#A14D1B #A1901B #6FA11B

triadic

#A1901B #1BA190 #901BA1

tetradic

#A1901B #1BA14D #1B2CA1 #A11B6F

square

#A1901B #1BA14D #1B2CA1 #A11B6F

split-complementary

#A1901B #1B6FA1 #4D1BA1

monochromatic

#383209 #6D6112 #A1901B #D5BF24 #E2D054

Accessibility & contrast

On white

3.22

#A1901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#A1901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A1901B

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1901B	#FFFFFF	#000000	##000000
##A1901B	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F8C00

Deuteranopia (green-blind)

#A39225

Tritanopia (blue-blind)

#AE857B

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #a1901b;
/* rgb */ color: rgb(161, 144, 27);
/* oklch */ color: oklch(64.9% 0.128 100.3);

Tailwind

colors: {
  custom: {
    50: '#c1b064',
    500: '#a1901b',
    950: '#000000',
  },
}

SCSS

$custom: #a1901b;
$custom-light: #c1b064;
$custom-dark: #000000;

JSON

{
  "hex": "#a1901b",
  "rgb": {
    "r": 161,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 52.388,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.64917,
    "c": 0.12764,
    "h": 100.3
  },
  "luminance": 0.27603
}

Semantic roles & 50–950 ramp

primary

#A1901B

secondary

#5261C5

accent

#51EE3A

background

#FCFAF6

surface

#F8F4EB

border

#D1CEC6

text

#131006

muted

#827F7A

Preview Lab

Preview with #A1901B

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

Preview Lab → · Contrast checker → · Palette generator →