#12583B#12583B

#12583B is a dark, moderate teal. Relative luminance 0.074; OKLCH L 41.0% C 0.083 H 160.7°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#12583B
RGB	rgb(18, 88, 59)
HSL	hsl(155, 66%, 21%)
HSV	hsv(155, 80%, 35%)
CMYK	cmyk(79.5%, 0%, 33%, 65.5%)
CIE-LAB	lab(32.75, -28.88, 10.89)
CIE-LCH	lch(32.75, 30.86, 159.34°)
OKLab	oklab(41.03% -0.0787 0.0276)
OKLCH	oklch(41.03% 0.083 160.7)
XYZ	xyz(4.5281, 7.4233, 5.3310)
Luminance	0.0742 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12583B #58122F

analogous

#125818 #12583B #125258

triadic

#12583B #3B1258 #583B12

tetradic

#12583B #181258 #58122F #525812

square

#12583B #181258 #58122F #525812

split-complementary

#12583B #581252 #581812

monochromatic

#051911 #082519 #12583B #1C8B5D #27BE7F

Accessibility & contrast

On white

8.45

#12583B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#12583B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12583B

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12583B	#FFFFFF	#000000	##FFFFFF
##12583B	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575139

Deuteranopia (green-blind)

#4E4A3D

Tritanopia (blue-blind)

#005850

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #12583b;
/* rgb */ color: rgb(18, 88, 59);
/* oklch */ color: oklch(41.0% 0.083 160.7);

Tailwind

colors: {
  custom: {
    50: '#5c8871',
    500: '#12583b',
    950: '#000000',
  },
}

SCSS

$custom: #12583b;
$custom-light: #5c8871;
$custom-dark: #000000;

JSON

{
  "hex": "#12583b",
  "rgb": {
    "r": 18,
    "g": 88,
    "b": 59
  },
  "hsl": {
    "h": 155.143,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.41026,
    "c": 0.08338,
    "h": 160.7
  },
  "luminance": 0.07424
}

Semantic roles & 50–950 ramp

primary

#12583B

secondary

#91355B

accent

#3F85E9

background

#F5F8F6

surface

#E9F0EC

border

#C5CBC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #12583B

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

Preview Lab → · Contrast checker → · Palette generator →