#1F430B#1F430B

#1F430B is a dark, moderate yellow-green. Relative luminance 0.043; OKLCH L 34.3% C 0.092 H 136.9°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F430B
RGB	rgb(31, 67, 11)
HSL	hsl(99, 72%, 15%)
HSV	hsv(99, 84%, 26%)
CMYK	cmyk(53.7%, 0%, 83.6%, 73.7%)
CIE-LAB	lab(24.73, -24.29, 28.16)
CIE-LCH	lch(24.73, 37.19, 130.78°)
OKLab	oklab(34.31% -0.0674 0.0632)
OKLCH	oklch(34.31% 0.092 136.9)
XYZ	xyz(2.6326, 4.3296, 1.0135)
Luminance	0.0433 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 1.81

Hunter Green (survey)

#0B4008

ΔE00 2.85

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F430B #2F0B43

analogous

#3B430B #1F430B #0B4313

triadic

#1F430B #0B1F43 #430B1F

tetradic

#1F430B #0B3B43 #2F0B43 #43130B

square

#1F430B #0B3B43 #2F0B43 #43130B

split-complementary

#1F430B #130B43 #430B3B

monochromatic

#0C1A04 #0C1A04 #1F430B #377814 #50AC1C

Accessibility & contrast

On white

11.25

#1F430B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1F430B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F430B

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F430B	#FFFFFF	#000000	##FFFFFF
##1F430B	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463D03

Deuteranopia (green-blind)

#413A11

Tritanopia (blue-blind)

#1D4038

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f430b;
/* rgb */ color: rgb(31, 67, 11);
/* oklch */ color: oklch(34.3% 0.092 136.9);

Tailwind

colors: {
  custom: {
    50: '#5f774e',
    500: '#1f430b',
    950: '#000000',
  },
}

SCSS

$custom: #1f430b;
$custom-light: #5f774e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f430b",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 11
  },
  "hsl": {
    "h": 98.571,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.34305,
    "c": 0.09243,
    "h": 136.9
  },
  "luminance": 0.0433
}

Semantic roles & 50–950 ramp

primary

#1F430B

secondary

#612A80

accent

#39EFAE

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#050902

muted

#797B78

Preview Lab

Preview with #1F430B

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

Preview Lab → · Contrast checker → · Palette generator →