#151F6B#151F6B

#151F6B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.1% C 0.131 H 269.8°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#151F6B
RGB	rgb(21, 31, 107)
HSL	hsl(233, 67%, 25%)
HSV	hsv(233, 80%, 42%)
CMYK	cmyk(80.4%, 71%, 0%, 58%)
CIE-LAB	lab(16.51, 25.47, -45.26)
CIE-LCH	lch(16.51, 51.93, 299.37°)
OKLab	oklab(29.05% -0.0004 -0.131)
OKLCH	oklch(29.05% 0.131 269.8)
XYZ	xyz(3.4522, 2.2006, 14.1499)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F6B #6B6115

analogous

#154A6B #151F6B #36156B

triadic

#151F6B #6B151F #1F6B15

tetradic

#151F6B #6B154A #6B6115 #156B36

square

#151F6B #6B154A #6B6115 #156B36

split-complementary

#151F6B #6B3615 #4A6B15

monochromatic

#05071A #0B1038 #151F6B #1F2E9E #293DD1

Accessibility & contrast

On white

14.58

#151F6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#151F6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F6B

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F6B	#FFFFFF	#000000	##FFFFFF
##151F6B	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)

#002D6D

Deuteranopia (green-blind)

#00256A

Tritanopia (blue-blind)

#003442

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #151f6b;
/* rgb */ color: rgb(21, 31, 107);
/* oklch */ color: oklch(29.1% 0.131 269.8);

Tailwind

colors: {
  custom: {
    50: '#625a96',
    500: '#151f6b',
    950: '#000000',
  },
}

SCSS

$custom: #151f6b;
$custom-light: #625a96;
$custom-dark: #000000;

JSON

{
  "hex": "#151f6b",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 107
  },
  "hsl": {
    "h": 233.023,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.29051,
    "c": 0.13098,
    "h": 269.8
  },
  "luminance": 0.02201
}

Semantic roles & 50–950 ramp

primary

#151F6B

secondary

#A2963A

accent

#D63EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #151F6B

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

Preview Lab → · Contrast checker → · Palette generator →