#151C39#151C39

#151C39 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.7% C 0.056 H 271.3°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#151C39
RGB	rgb(21, 28, 57)
HSL	hsl(228, 46%, 15%)
HSV	hsv(228, 63%, 22%)
CMYK	cmyk(63.2%, 50.9%, 0%, 77.6%)
CIE-LAB	lab(11.17, 7.25, -19.87)
CIE-LCH	lch(11.17, 21.15, 290.06°)
OKLab	oklab(23.69% 0.0013 -0.0565)
OKLCH	oklch(23.69% 0.056 271.3)
XYZ	xyz(1.4628, 1.2852, 4.0411)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C39 #393215

analogous

#152E39 #151C39 #201539

triadic

#151C39 #39151C #1C3915

tetradic

#151C39 #39152E #393215 #153920

square

#151C39 #39152E #393215 #153920

split-complementary

#151C39 #392015 #2E3915

monochromatic

#080B16 #080B16 #151C39 #253266 #364892

Accessibility & contrast

On white

16.71

#151C39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151C39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C39

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C39	#FFFFFF	#000000	##FFFFFF
##151C39	1.00	16.71	1.26	16.71
#FFFFFF	16.71	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101F3A

Deuteranopia (green-blind)

#0B1C38

Tritanopia (blue-blind)

#042227

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151c39;
/* rgb */ color: rgb(21, 28, 57);
/* oklch */ color: oklch(23.7% 0.056 271.3);

Tailwind

colors: {
  custom: {
    50: '#56576f',
    500: '#151c39',
    950: '#000000',
  },
}

SCSS

$custom: #151c39;
$custom-light: #56576f;
$custom-dark: #000000;

JSON

{
  "hex": "#151c39",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 57
  },
  "hsl": {
    "h": 228.333,
    "s": 46.154,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2369,
    "c": 0.05648,
    "h": 271.3
  },
  "luminance": 0.01285
}

Semantic roles & 50–950 ramp

primary

#151C39

secondary

#706639

accent

#BC52D6

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151C39

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

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