#12383B#12383B

#12383B is a dark, muted teal. Relative luminance 0.033; OKLCH L 31.5% C 0.043 H 202.4°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#12383B
RGB	rgb(18, 56, 59)
HSL	hsl(184, 53%, 15%)
HSV	hsv(184, 69%, 23%)
CMYK	cmyk(69.5%, 5.1%, 0%, 76.9%)
CIE-LAB	lab(21.10, -12.18, -5.88)
CIE-LCH	lch(21.10, 13.52, 205.78°)
OKLab	oklab(31.52% -0.0394 -0.0163)
OKLCH	oklch(31.52% 0.043 202.4)
XYZ	xyz(2.4527, 3.2725, 4.6392)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12383B #3B1512

analogous

#123B29 #12383B #12243B

triadic

#12383B #3B1238 #383B12

tetradic

#12383B #29123B #3B1512 #243B12

square

#12383B #29123B #3B1512 #243B12

split-complementary

#12383B #3B1224 #3B2912

monochromatic

#071617 #071617 #12383B #20656A #2F9199

Accessibility & contrast

On white

12.69

#12383B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#12383B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12383B

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12383B	#FFFFFF	#000000	##FFFFFF
##12383B	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33353B

Deuteranopia (green-blind)

#2D313B

Tritanopia (blue-blind)

#003A39

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #12383b;
/* rgb */ color: rgb(18, 56, 59);
/* oklch */ color: oklch(31.5% 0.043 202.4);

Tailwind

colors: {
  custom: {
    50: '#566e70',
    500: '#12383b',
    950: '#000000',
  },
}

SCSS

$custom: #12383b;
$custom-light: #566e70;
$custom-dark: #000000;

JSON

{
  "hex": "#12383b",
  "rgb": {
    "r": 18,
    "g": 56,
    "b": 59
  },
  "hsl": {
    "h": 184.39,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.31522,
    "c": 0.04267,
    "h": 202.4
  },
  "luminance": 0.03273
}

Semantic roles & 50–950 ramp

primary

#12383B

secondary

#743A35

accent

#564BDD

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #12383B

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

Preview Lab → · Contrast checker → · Palette generator →