#15313B#15313B

#15313B is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.6% C 0.038 H 223.8°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#15313B
RGB	rgb(21, 49, 59)
HSL	hsl(196, 48%, 16%)
HSV	hsv(196, 64%, 23%)
CMYK	cmyk(64.4%, 16.9%, 0%, 76.9%)
CIE-LAB	lab(18.68, -7.05, -9.55)
CIE-LCH	lch(18.68, 11.87, 233.56°)
OKLab	oklab(29.61% -0.0277 -0.0265)
OKLCH	oklch(29.61% 0.038 223.8)
XYZ	xyz(2.1967, 2.6716, 4.5367)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15313B #3B1F15

analogous

#153B32 #15313B #151E3B

triadic

#15313B #3B1531 #313B15

tetradic

#15313B #32153B #3B1F15 #1E3B15

square

#15313B #32153B #3B1F15 #1E3B15

split-complementary

#15313B #3B151E #3B3215

monochromatic

#081317 #081317 #15313B #255668 #357C95

Accessibility & contrast

On white

13.69

#15313B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#15313B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15313B

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15313B	#FFFFFF	#000000	##FFFFFF
##15313B	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B303C

Deuteranopia (green-blind)

#262C3B

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #15313b;
/* rgb */ color: rgb(21, 49, 59);
/* oklch */ color: oklch(29.6% 0.038 223.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#15313b",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 59
  },
  "hsl": {
    "h": 195.789,
    "s": 47.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.2961,
    "c": 0.03832,
    "h": 223.8
  },
  "luminance": 0.02672
}

Semantic roles & 50–950 ramp

primary

#15313B

secondary

#724839

accent

#7451D7

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #15313B

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

Preview Lab → · Contrast checker → · Palette generator →