#1F4E03#1F4E03

#1F4E03 is a dark, moderate yellow-green. Relative luminance 0.057; OKLCH L 37.6% C 0.112 H 137.4°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E03
RGB	rgb(31, 78, 3)
HSL	hsl(98, 93%, 16%)
HSV	hsv(98, 96%, 31%)
CMYK	cmyk(60.3%, 0%, 96.2%, 69.4%)
CIE-LAB	lab(28.76, -29.73, 35.00)
CIE-LCH	lch(28.76, 45.93, 130.35°)
OKLab	oklab(37.61% -0.0826 0.076)
OKLCH	oklch(37.61% 0.112 137.4)
XYZ	xyz(3.3058, 5.7464, 1.0211)
Luminance	0.0575 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E03 #32034E

analogous

#444E03 #1F4E03 #034E0C

triadic

#1F4E03 #031F4E #4E031F

tetradic

#1F4E03 #03444E #32034E #4E0C03

square

#1F4E03 #03444E #32034E #4E0C03

split-complementary

#1F4E03 #0C034E #4E0344

monochromatic

#0C1D01 #0C1D01 #1F4E03 #368905 #4EC408

Accessibility & contrast

On white

9.77

#1F4E03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1F4E03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E03

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E03	#FFFFFF	#000000	##FFFFFF
##1F4E03	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514600

Deuteranopia (green-blind)

#4B420D

Tritanopia (blue-blind)

#1B4B41

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4e03;
/* rgb */ color: rgb(31, 78, 3);
/* oklch */ color: oklch(37.6% 0.112 137.4);

Tailwind

colors: {
  custom: {
    50: '#62804c',
    500: '#1f4e03',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e03;
$custom-light: #62804c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e03",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 3
  },
  "hsl": {
    "h": 97.6,
    "s": 92.593,
    "l": 15.882
  },
  "oklch": {
    "l": 0.3761,
    "c": 0.11224,
    "h": 137.4
  },
  "luminance": 0.05747
}

Semantic roles & 50–950 ramp

primary

#1F4E03

secondary

#651E8E

accent

#29FFAF

background

#F6F7F4

surface

#EBEEE7

border

#C6C9C3

text

#050A01

muted

#7A7C77

Preview Lab

Preview with #1F4E03

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

Preview Lab → · Contrast checker → · Palette generator →