#151F51#151F51

#151F51 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.4% C 0.092 H 270.3°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#151F51
RGB	rgb(21, 31, 81)
HSL	hsl(230, 59%, 20%)
HSV	hsv(230, 74%, 32%)
CMYK	cmyk(74.1%, 61.7%, 0%, 68.2%)
CIE-LAB	lab(14.02, 14.89, -32.00)
CIE-LCH	lch(14.02, 35.29, 294.95°)
OKLab	oklab(26.45% 0.0005 -0.0921)
OKLCH	oklch(26.45% 0.092 270.3)
XYZ	xyz(2.2839, 1.7333, 7.9972)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F51 #514715

analogous

#153D51 #151F51 #291551

triadic

#151F51 #51151F #1F5115

tetradic

#151F51 #51153D #514715 #155129

square

#151F51 #51153D #514715 #155129

split-complementary

#151F51 #512915 #3D5115

monochromatic

#060918 #080C20 #151F51 #223282 #2E44B2

Accessibility & contrast

On white

15.59

#151F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#151F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F51

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F51	#FFFFFF	#000000	##FFFFFF
##151F51	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002653

Deuteranopia (green-blind)

#002150

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #151f51;
/* rgb */ color: rgb(21, 31, 81);
/* oklch */ color: oklch(26.4% 0.092 270.3);

Tailwind

colors: {
  custom: {
    50: '#5b5a82',
    500: '#151f51',
    950: '#000000',
  },
}

SCSS

$custom: #151f51;
$custom-light: #5b5a82;
$custom-dark: #000000;

JSON

{
  "hex": "#151f51",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 81
  },
  "hsl": {
    "h": 230,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.26449,
    "c": 0.09211,
    "h": 270.3
  },
  "luminance": 0.01733
}

Semantic roles & 50–950 ramp

primary

#151F51

secondary

#897C39

accent

#C846E2

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #151F51

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

Preview Lab → · Contrast checker → · Palette generator →