#151C4A#151C4A

#151C4A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.085 H 272.2°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#151C4A
RGB	rgb(21, 28, 74)
HSL	hsl(232, 56%, 19%)
HSV	hsv(232, 72%, 29%)
CMYK	cmyk(71.6%, 62.2%, 0%, 71%)
CIE-LAB	lab(12.51, 14.24, -29.65)
CIE-LCH	lch(12.51, 32.89, 295.65°)
OKLab	oklab(25.13% 0.0033 -0.0853)
OKLCH	oklch(25.13% 0.085 272.2)
XYZ	xyz(1.9601, 1.4842, 6.6604)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C4A #4A4315

analogous

#15364A #151C4A #28154A

triadic

#151C4A #4A151C #1C4A15

tetradic

#151C4A #4A1536 #4A4315 #154A28

square

#151C4A #4A1536 #4A4315 #154A28

split-complementary

#151C4A #4A2815 #364A15

monochromatic

#070918 #070A1A #151C4A #232E7A #3040A9

Accessibility & contrast

On white

16.19

#151C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#151C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C4A

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C4A	#FFFFFF	#000000	##FFFFFF
##151C4A	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234C

Deuteranopia (green-blind)

#001E49

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #151c4a;
/* rgb */ color: rgb(21, 28, 74);
/* oklch */ color: oklch(25.1% 0.085 272.2);

Tailwind

colors: {
  custom: {
    50: '#5a577d',
    500: '#151c4a',
    950: '#000000',
  },
}

SCSS

$custom: #151c4a;
$custom-light: #5a577d;
$custom-dark: #000000;

JSON

{
  "hex": "#151c4a",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 74
  },
  "hsl": {
    "h": 232.075,
    "s": 55.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25126,
    "c": 0.08531,
    "h": 272.2
  },
  "luminance": 0.01484
}

Semantic roles & 50–950 ramp

primary

#151C4A

secondary

#827839

accent

#CB49DF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #151C4A

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

Preview Lab → · Contrast checker → · Palette generator →