#1F400A#1F400A

#1F400A is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.4% C 0.089 H 136.1°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F400A
RGB	rgb(31, 64, 10)
HSL	hsl(97, 73%, 15%)
HSV	hsv(97, 84%, 25%)
CMYK	cmyk(51.6%, 0%, 84.4%, 74.9%)
CIE-LAB	lab(23.60, -22.95, 27.45)
CIE-LCH	lch(23.60, 35.78, 129.89°)
OKLab	oklab(33.38% -0.0639 0.0616)
OKLCH	oklch(33.38% 0.089 136.1)
XYZ	xyz(2.4532, 3.9799, 0.9260)
Luminance	0.0398 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 2.56

Hunter Green (survey)

#0B4008

ΔE00 3.08

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F400A #2B0A40

analogous

#3A400A #1F400A #0A4010

triadic

#1F400A #0A1F40 #400A1F

tetradic

#1F400A #0A3A40 #2B0A40 #40100A

square

#1F400A #0A3A40 #2B0A40 #40100A

split-complementary

#1F400A #100A40 #400A3A

monochromatic

#0D1A04 #0D1A04 #1F400A #397512 #52AA1B

Accessibility & contrast

On white

11.69

#1F400A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F400A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F400A

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F400A	#FFFFFF	#000000	##FFFFFF
##1F400A	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433A02

Deuteranopia (green-blind)

#3E3710

Tritanopia (blue-blind)

#1E3D36

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f400a;
/* rgb */ color: rgb(31, 64, 10);
/* oklch */ color: oklch(33.4% 0.089 136.1);

Tailwind

colors: {
  custom: {
    50: '#5f754d',
    500: '#1f400a',
    950: '#000000',
  },
}

SCSS

$custom: #1f400a;
$custom-light: #5f754d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f400a",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 10
  },
  "hsl": {
    "h": 96.667,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.33376,
    "c": 0.08874,
    "h": 136.1
  },
  "luminance": 0.0398
}

Semantic roles & 50–950 ramp

primary

#1F400A

secondary

#5C297D

accent

#38F0A8

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#050801

muted

#797B77

Preview Lab

Preview with #1F400A

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

Preview Lab → · Contrast checker → · Palette generator →