#1B5A2D#1B5A2D

#1B5A2D is a dark, moderate green. Relative luminance 0.077; OKLCH L 41.6% C 0.097 H 149.4°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A2D
RGB	rgb(27, 90, 45)
HSL	hsl(137, 54%, 23%)
HSV	hsv(137, 70%, 35%)
CMYK	cmyk(70%, 0%, 50%, 64.7%)
CIE-LAB	lab(33.42, -31.06, 20.24)
CIE-LCH	lch(33.42, 37.07, 146.92°)
OKLab	oklab(41.55% -0.0838 0.0495)
OKLCH	oklch(41.55% 0.097 149.4)
XYZ	xyz(4.5815, 7.7343, 3.7335)
Luminance	0.0774 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A2D #5A1B48

analogous

#285A1B #1B5A2D #1B5A4C

triadic

#1B5A2D #2D1B5A #5A2D1B

tetradic

#1B5A2D #1B285A #5A1B48 #5A4C1B

square

#1B5A2D #1B285A #5A1B48 #5A4C1B

split-complementary

#1B5A2D #4C1B5A #5A1B28

monochromatic

#07180C #0D2B15 #1B5A2D #298945 #37B85C

Accessibility & contrast

On white

8.24

#1B5A2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1B5A2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A2D

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A2D	#FFFFFF	#000000	##FFFFFF
##1B5A2D	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5229

Deuteranopia (green-blind)

#534C30

Tritanopia (blue-blind)

#04584F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5a2d;
/* rgb */ color: rgb(27, 90, 45);
/* oklch */ color: oklch(41.6% 0.097 149.4);

Tailwind

colors: {
  custom: {
    50: '#608966',
    500: '#1b5a2d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a2d;
$custom-light: #608966;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a2d",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 45
  },
  "hsl": {
    "h": 137.143,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.41554,
    "c": 0.09733,
    "h": 149.4
  },
  "luminance": 0.07735
}

Semantic roles & 50–950 ramp

primary

#1B5A2D

secondary

#904179

accent

#4BB3DD

background

#F5F8F6

surface

#EAF0EB

border

#C6CBC6

text

#050B06

muted

#797C7A

Preview Lab

Preview with #1B5A2D

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

Preview Lab → · Contrast checker → · Palette generator →