#151B74#151B74

#151B74 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.148 H 270.2°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#151B74
RGB	rgb(21, 27, 116)
HSL	hsl(236, 69%, 27%)
HSV	hsv(236, 82%, 45%)
CMYK	cmyk(81.9%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(16.52, 31.57, -51.07)
CIE-LCH	lch(16.52, 60.04, 301.72°)
OKLab	oklab(29.36% 0.0005 -0.1479)
OKLCH	oklch(29.36% 0.148 270.2)
XYZ	xyz(3.8525, 2.2038, 16.7419)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B74 #746E15

analogous

#154A74 #151B74 #3F1574

triadic

#151B74 #74151B #1B7415

tetradic

#151B74 #74154A #746E15 #15743F

square

#151B74 #74154A #746E15 #15743F

split-complementary

#151B74 #743F15 #4A7415

monochromatic

#05061A #0C0F40 #151B74 #1E27A8 #2B36D9

Accessibility & contrast

On white

14.58

#151B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#151B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B74

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B74	#FFFFFF	#000000	##FFFFFF
##151B74	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E77

Deuteranopia (green-blind)

#002472

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #151b74;
/* rgb */ color: rgb(21, 27, 116);
/* oklch */ color: oklch(29.4% 0.148 270.2);

Tailwind

colors: {
  custom: {
    50: '#65589d',
    500: '#151b74',
    950: '#000000',
  },
}

SCSS

$custom: #151b74;
$custom-light: #65589d;
$custom-dark: #000000;

JSON

{
  "hex": "#151b74",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 236.211,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.29357,
    "c": 0.14792,
    "h": 270.2
  },
  "luminance": 0.02204
}

Semantic roles & 50–950 ramp

primary

#151B74

secondary

#AAA33B

accent

#E13CEC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #151B74

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

Preview Lab → · Contrast checker → · Palette generator →