#151F43#151F43

#151F43 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.069 H 269.3°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#151F43
RGB	rgb(21, 31, 67)
HSL	hsl(227, 52%, 17%)
HSV	hsv(227, 69%, 26%)
CMYK	cmyk(68.7%, 53.7%, 0%, 73.7%)
CIE-LAB	lab(12.89, 9.05, -24.18)
CIE-LCH	lch(12.89, 25.82, 290.53°)
OKLab	oklab(25.23% -0.0009 -0.0691)
OKLCH	oklch(25.23% 0.069 269.3)
XYZ	xyz(1.8120, 1.5445, 5.5117)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F43 #433915

analogous

#153643 #151F43 #221543

triadic

#151F43 #43151F #1F4315

tetradic

#151F43 #431536 #433915 #154322

square

#151F43 #431536 #433915 #154322

split-complementary

#151F43 #432215 #364315

monochromatic

#070B17 #070B17 #151F43 #243572 #324AA0

Accessibility & contrast

On white

16.04

#151F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#151F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F43

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F43	#FFFFFF	#000000	##FFFFFF
##151F43	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2344

Deuteranopia (green-blind)

#061F42

Tritanopia (blue-blind)

#00272D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #151f43;
/* rgb */ color: rgb(21, 31, 67);
/* oklch */ color: oklch(25.2% 0.069 269.3);

Tailwind

colors: {
  custom: {
    50: '#585a77',
    500: '#151f43',
    950: '#000000',
  },
}

SCSS

$custom: #151f43;
$custom-light: #585a77;
$custom-dark: #000000;

JSON

{
  "hex": "#151f43",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 67
  },
  "hsl": {
    "h": 226.957,
    "s": 52.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.25234,
    "c": 0.06911,
    "h": 269.3
  },
  "luminance": 0.01545
}

Semantic roles & 50–950 ramp

primary

#151F43

secondary

#7B6C39

accent

#BC4CDC

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #151F43

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

Preview Lab → · Contrast checker → · Palette generator →