#1B4603#1B4603

#1B4603 is a dark, moderate yellow-green. Relative luminance 0.046; OKLCH L 35.0% C 0.104 H 137.5°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B4603
RGB	rgb(27, 70, 3)
HSL	hsl(99, 92%, 14%)
HSV	hsv(99, 96%, 27%)
CMYK	cmyk(61.4%, 0%, 95.7%, 72.5%)
CIE-LAB	lab(25.62, -27.63, 32.19)
CIE-LCH	lch(25.62, 42.43, 130.64°)
OKLab	oklab(34.97% -0.0767 0.0702)
OKLCH	oklch(34.97% 0.104 137.5)
XYZ	xyz(2.6585, 4.6197, 0.8377)
Luminance	0.0462 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forest Green (survey)

#06470C

ΔE00 3.27

Hunter Green (survey)

#0B4008

ΔE00 3.29

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4603 #2E0346

analogous

#3D4603 #1B4603 #03460C

triadic

#1B4603 #031B46 #46031B

tetradic

#1B4603 #033D46 #2E0346 #460C03

square

#1B4603 #033D46 #2E0346 #460C03

split-complementary

#1B4603 #0C0346 #46033D

monochromatic

#0B1D01 #0B1D01 #1B4603 #328106 #48BB08

Accessibility & contrast

On white

10.91

#1B4603 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1B4603 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4603

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4603	#FFFFFF	#000000	##FFFFFF
##1B4603	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#493F00

Deuteranopia (green-blind)

#433B0B

Tritanopia (blue-blind)

#18433A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1b4603;
/* rgb */ color: rgb(27, 70, 3);
/* oklch */ color: oklch(35.0% 0.104 137.5);

Tailwind

colors: {
  custom: {
    50: '#5e7a4b',
    500: '#1b4603',
    950: '#000000',
  },
}

SCSS

$custom: #1b4603;
$custom-light: #5e7a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4603",
  "rgb": {
    "r": 27,
    "g": 70,
    "b": 3
  },
  "hsl": {
    "h": 98.507,
    "s": 91.781,
    "l": 14.314
  },
  "oklch": {
    "l": 0.34971,
    "c": 0.10402,
    "h": 137.5
  },
  "luminance": 0.0462
}

Semantic roles & 50–950 ramp

primary

#1B4603

secondary

#611D87

accent

#29FFB2

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#050901

muted

#797B77

Preview Lab

Preview with #1B4603

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

Preview Lab → · Contrast checker → · Palette generator →