#151F3A#151F3A

#151F3A is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.5% C 0.054 H 267.1°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#151F3A
RGB	rgb(21, 31, 58)
HSL	hsl(224, 47%, 15%)
HSV	hsv(224, 64%, 23%)
CMYK	cmyk(63.8%, 46.6%, 0%, 77.3%)
CIE-LAB	lab(12.25, 5.36, -18.86)
CIE-LCH	lch(12.25, 19.60, 285.87°)
OKLab	oklab(24.54% -0.0027 -0.0535)
OKLCH	oklch(24.54% 0.054 267.1)
XYZ	xyz(1.5627, 1.4448, 4.1987)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F3A #3A3015

analogous

#15313A #151F3A #1D153A

triadic

#151F3A #3A151F #1F3A15

tetradic

#151F3A #3A1531 #3A3015 #153A1D

square

#151F3A #3A1531 #3A3015 #153A1D

split-complementary

#151F3A #3A1D15 #313A15

monochromatic

#080C16 #080C16 #151F3A #253767 #364F94

Accessibility & contrast

On white

16.29

#151F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#151F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F3A

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F3A	#FFFFFF	#000000	##FFFFFF
##151F3A	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14223B

Deuteranopia (green-blind)

#0F1E39

Tritanopia (blue-blind)

#032529

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151f3a;
/* rgb */ color: rgb(21, 31, 58);
/* oklch */ color: oklch(24.5% 0.054 267.1);

Tailwind

colors: {
  custom: {
    50: '#565a70',
    500: '#151f3a',
    950: '#000000',
  },
}

SCSS

$custom: #151f3a;
$custom-light: #565a70;
$custom-dark: #000000;

JSON

{
  "hex": "#151f3a",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 58
  },
  "hsl": {
    "h": 223.784,
    "s": 46.835,
    "l": 15.49
  },
  "oklch": {
    "l": 0.24542,
    "c": 0.05356,
    "h": 267.1
  },
  "luminance": 0.01445
}

Semantic roles & 50–950 ramp

primary

#151F3A

secondary

#716239

accent

#B251D6

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151F3A

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

Preview Lab → · Contrast checker → · Palette generator →