#151C4C#151C4C

#151C4C is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.089 H 272.2°. Best body text is #FFFFFF at 16.12:1 contrast (WCAG AA passes).

Color values

HEX	#151C4C
RGB	rgb(21, 28, 76)
HSL	hsl(232, 57%, 19%)
HSV	hsv(232, 72%, 30%)
CMYK	cmyk(72.4%, 63.2%, 0%, 70.2%)
CIE-LAB	lab(12.68, 15.07, -30.75)
CIE-LCH	lch(12.68, 34.24, 296.10°)
OKLab	oklab(25.31% 0.0034 -0.0885)
OKLCH	oklch(25.31% 0.089 272.2)
XYZ	xyz(2.0286, 1.5116, 7.0209)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C4C #4C4515

analogous

#15384C #151C4C #2A154C

triadic

#151C4C #4C151C #1C4C15

tetradic

#151C4C #4C1538 #4C4515 #154C2A

square

#151C4C #4C1538 #4C4515 #154C2A

split-complementary

#151C4C #4C2A15 #384C15

monochromatic

#070918 #080A1C #151C4C #222E7C #2F3FAC

Accessibility & contrast

On white

16.12

#151C4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#151C4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C4C

16.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C4C	#FFFFFF	#000000	##FFFFFF
##151C4C	1.00	16.12	1.30	16.12
#FFFFFF	16.12	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234E

Deuteranopia (green-blind)

#001E4B

Tritanopia (blue-blind)

#002830

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #151c4c;
/* rgb */ color: rgb(21, 28, 76);
/* oklch */ color: oklch(25.3% 0.089 272.2);

Tailwind

colors: {
  custom: {
    50: '#5a577e',
    500: '#151c4c',
    950: '#000000',
  },
}

SCSS

$custom: #151c4c;
$custom-light: #5a577e;
$custom-dark: #000000;

JSON

{
  "hex": "#151c4c",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 76
  },
  "hsl": {
    "h": 232.364,
    "s": 56.701,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25312,
    "c": 0.08854,
    "h": 272.2
  },
  "luminance": 0.01512
}

Semantic roles & 50–950 ramp

primary

#151C4C

secondary

#847A39

accent

#CD48E0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151C4C

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

Preview Lab → · Contrast checker → · Palette generator →