#15313C#15313C

#15313C is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.7% C 0.039 H 226.1°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#15313C
RGB	rgb(21, 49, 60)
HSL	hsl(197, 48%, 16%)
HSV	hsv(197, 65%, 24%)
CMYK	cmyk(65%, 18.3%, 0%, 76.5%)
CIE-LAB	lab(18.72, -6.68, -10.16)
CIE-LCH	lch(18.72, 12.16, 236.68°)
OKLab	oklab(29.66% -0.0272 -0.0283)
OKLCH	oklch(29.66% 0.039 226.1)
XYZ	xyz(2.2229, 2.6821, 4.6746)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15313C #3C2015

analogous

#153C33 #15313C #151D3C

triadic

#15313C #3C1531 #313C15

tetradic

#15313C #33153C #3C2015 #1D3C15

square

#15313C #33153C #3C2015 #1D3C15

split-complementary

#15313C #3C151D #3C3315

monochromatic

#081317 #081317 #15313C #255669 #357B97

Accessibility & contrast

On white

13.67

#15313C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#15313C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15313C

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15313C	#FFFFFF	#000000	##FFFFFF
##15313C	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B303D

Deuteranopia (green-blind)

#252C3C

Tritanopia (blue-blind)

#003435

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #15313c;
/* rgb */ color: rgb(21, 49, 60);
/* oklch */ color: oklch(29.7% 0.039 226.1);

Tailwind

colors: {
  custom: {
    50: '#566971',
    500: '#15313c',
    950: '#000000',
  },
}

SCSS

$custom: #15313c;
$custom-light: #566971;
$custom-dark: #000000;

JSON

{
  "hex": "#15313c",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 60
  },
  "hsl": {
    "h": 196.923,
    "s": 48.148,
    "l": 15.882
  },
  "oklch": {
    "l": 0.29661,
    "c": 0.03923,
    "h": 226.1
  },
  "luminance": 0.02682
}

Semantic roles & 50–950 ramp

primary

#15313C

secondary

#744A39

accent

#7650D8

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #15313C

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

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