#283F05#283F05

#283F05 is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.6% C 0.085 H 129.8°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#283F05
RGB	rgb(40, 63, 5)
HSL	hsl(84, 85%, 13%)
HSV	hsv(84, 92%, 25%)
CMYK	cmyk(36.5%, 0%, 92.1%, 75.3%)
CIE-LAB	lab(23.73, -19.06, 29.79)
CIE-LCH	lch(23.73, 35.36, 122.61°)
OKLab	oklab(33.61% -0.0545 0.0656)
OKLCH	oklch(33.61% 0.085 129.8)
XYZ	xyz(2.6800, 4.0170, 0.7777)
Luminance	0.0402 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F05 #1C053F

analogous

#3F3905 #283F05 #0B3F05

triadic

#283F05 #05283F #3F0528

tetradic

#283F05 #053F39 #1C053F #3F050B

square

#283F05 #053F39 #1C053F #3F050B

split-complementary

#283F05 #050B3F #39053F

monochromatic

#121C02 #121C02 #283F05 #4C7809 #70B00E

Accessibility & contrast

On white

11.64

#283F05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#283F05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F05

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F05	#FFFFFF	#000000	##FFFFFF
##283F05	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423A00

Deuteranopia (green-blind)

#3F380B

Tritanopia (blue-blind)

#293C34

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #283f05;
/* rgb */ color: rgb(40, 63, 5);
/* oklch */ color: oklch(33.6% 0.085 129.8);

Tailwind

colors: {
  custom: {
    50: '#65744b',
    500: '#283f05',
    950: '#000000',
  },
}

SCSS

$custom: #283f05;
$custom-light: #65744b;
$custom-dark: #000000;

JSON

{
  "hex": "#283f05",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 5
  },
  "hsl": {
    "h": 83.793,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.33608,
    "c": 0.08529,
    "h": 129.8
  },
  "luminance": 0.04017
}

Semantic roles & 50–950 ramp

primary

#283F05

secondary

#462080

accent

#2CFC7E

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#060801

muted

#7A7B77

Preview Lab

Preview with #283F05

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

Preview Lab → · Contrast checker → · Palette generator →