#1F3601#1F3601

#1F3601 is a dark, moderate yellow-green. Relative luminance 0.029; OKLCH L 30.2% C 0.081 H 131.1°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F3601
RGB	rgb(31, 54, 1)
HSL	hsl(86, 96%, 11%)
HSV	hsv(86, 98%, 21%)
CMYK	cmyk(42.6%, 0%, 98.1%, 78.8%)
CIE-LAB	lab(19.77, -18.72, 27.00)
CIE-LCH	lch(19.77, 32.86, 124.73°)
OKLab	oklab(30.21% -0.0535 0.0614)
OKLCH	oklch(30.21% 0.081 131.1)
XYZ	xyz(1.8897, 2.9318, 0.4950)
Luminance	0.0293 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Dark Green

#033500

ΔE00 5.11

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3601 #180136

analogous

#363201 #1F3601 #043601

triadic

#1F3601 #011F36 #36011F

tetradic

#1F3601 #013632 #180136 #360104

square

#1F3601 #013632 #180136 #360104

split-complementary

#1F3601 #010436 #320136

monochromatic

#111E01 #111E01 #1F3601 #417202 #64AE03

Accessibility & contrast

On white

13.24

#1F3601 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F3601 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3601

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3601	#FFFFFF	#000000	##FFFFFF
##1F3601	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393100

Deuteranopia (green-blind)

#362F06

Tritanopia (blue-blind)

#20332C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f3601;
/* rgb */ color: rgb(31, 54, 1);
/* oklch */ color: oklch(30.2% 0.081 131.1);

Tailwind

colors: {
  custom: {
    50: '#5d6d48',
    500: '#1f3601',
    950: '#000000',
  },
}

SCSS

$custom: #1f3601;
$custom-light: #5d6d48;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3601",
  "rgb": {
    "r": 31,
    "g": 54,
    "b": 1
  },
  "hsl": {
    "h": 86.038,
    "s": 96.364,
    "l": 10.784
  },
  "oklch": {
    "l": 0.3021,
    "c": 0.08142,
    "h": 131.1
  },
  "luminance": 0.02932
}

Semantic roles & 50–950 ramp

primary

#1F3601

secondary

#43187B

accent

#29FF86

background

#F5F6F4

surface

#E9EBE6

border

#C5C6C2

text

#040700

muted

#797A77

Preview Lab

Preview with #1F3601

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

Preview Lab → · Contrast checker → · Palette generator →