#12403C#12403C

#12403C is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.9% C 0.050 H 187.0°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#12403C
RGB	rgb(18, 64, 60)
HSL	hsl(175, 56%, 16%)
HSV	hsv(175, 72%, 25%)
CMYK	cmyk(71.9%, 0%, 6.2%, 74.9%)
CIE-LAB	lab(24.07, -16.50, -2.14)
CIE-LCH	lch(24.07, 16.64, 187.38°)
OKLab	oklab(33.93% -0.0492 -0.006)
OKLCH	oklch(33.93% 0.05 187)
XYZ	xyz(2.8981, 4.1213, 4.9168)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12403C #401216

analogous

#124025 #12403C #122D40

triadic

#12403C #3C1240 #403C12

tetradic

#12403C #251240 #401216 #2D4012

square

#12403C #251240 #401216 #2D4012

split-complementary

#12403C #40122D #402512

monochromatic

#071816 #071816 #12403C #1F7069 #2DA096

Accessibility & contrast

On white

11.51

#12403C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#12403C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12403C

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12403C	#FFFFFF	#000000	##FFFFFF
##12403C	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3C3C

Deuteranopia (green-blind)

#35373C

Tritanopia (blue-blind)

#00423F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #12403c;
/* rgb */ color: rgb(18, 64, 60);
/* oklch */ color: oklch(33.9% 0.050 187.0);

Tailwind

colors: {
  custom: {
    50: '#577571',
    500: '#12403c',
    950: '#000000',
  },
}

SCSS

$custom: #12403c;
$custom-light: #577571;
$custom-dark: #000000;

JSON

{
  "hex": "#12403c",
  "rgb": {
    "r": 18,
    "g": 64,
    "b": 60
  },
  "hsl": {
    "h": 174.783,
    "s": 56.098,
    "l": 16.078
  },
  "oklch": {
    "l": 0.33933,
    "c": 0.0496,
    "h": 187
  },
  "luminance": 0.04122
}

Semantic roles & 50–950 ramp

primary

#12403C

secondary

#79353B

accent

#4856DF

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #12403C

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

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