#151F39#151F39

#151F39 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.5% C 0.052 H 266.7°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#151F39
RGB	rgb(21, 31, 57)
HSL	hsl(223, 46%, 15%)
HSV	hsv(223, 63%, 22%)
CMYK	cmyk(63.2%, 45.6%, 0%, 77.6%)
CIE-LAB	lab(12.19, 4.96, -18.25)
CIE-LCH	lch(12.19, 18.91, 285.20°)
OKLab	oklab(24.47% -0.003 -0.0517)
OKLCH	oklch(24.47% 0.052 266.7)
XYZ	xyz(1.5375, 1.4347, 4.0660)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F39 #392F15

analogous

#153139 #151F39 #1D1539

triadic

#151F39 #39151F #1F3915

tetradic

#151F39 #391531 #392F15 #15391D

square

#151F39 #391531 #392F15 #15391D

split-complementary

#151F39 #391D15 #313915

monochromatic

#080C16 #080C16 #151F39 #253766 #365092

Accessibility & contrast

On white

16.32

#151F39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#151F39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F39

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F39	#FFFFFF	#000000	##FFFFFF
##151F39	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14223A

Deuteranopia (green-blind)

#101E38

Tritanopia (blue-blind)

#032529

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151f39;
/* rgb */ color: rgb(21, 31, 57);
/* oklch */ color: oklch(24.5% 0.052 266.7);

Tailwind

colors: {
  custom: {
    50: '#565a6f',
    500: '#151f39',
    950: '#000000',
  },
}

SCSS

$custom: #151f39;
$custom-light: #565a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#151f39",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 57
  },
  "hsl": {
    "h": 223.333,
    "s": 46.154,
    "l": 15.294
  },
  "oklch": {
    "l": 0.24469,
    "c": 0.0518,
    "h": 266.7
  },
  "luminance": 0.01435
}

Semantic roles & 50–950 ramp

primary

#151F39

secondary

#706139

accent

#B152D6

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151F39

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

Preview Lab → · Contrast checker → · Palette generator →