#151C53#151C53

#151C53 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.100 H 271.9°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#151C53
RGB	rgb(21, 28, 83)
HSL	hsl(233, 60%, 20%)
HSV	hsv(233, 75%, 33%)
CMYK	cmyk(74.7%, 66.3%, 0%, 67.5%)
CIE-LAB	lab(13.32, 17.95, -34.50)
CIE-LCH	lch(13.32, 38.89, 297.48°)
OKLab	oklab(25.98% 0.0034 -0.0995)
OKLCH	oklch(25.98% 0.1 271.9)
XYZ	xyz(2.2853, 1.6143, 8.3731)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C53 #534C15

analogous

#153B53 #151C53 #2D1553

triadic

#151C53 #53151C #1C5315

tetradic

#151C53 #53153B #534C15 #15532D

square

#151C53 #53153B #534C15 #15532D

split-complementary

#151C53 #532D15 #3B5315

monochromatic

#060818 #090C22 #151C53 #212C84 #2E3DB5

Accessibility & contrast

On white

15.88

#151C53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#151C53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C53

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C53	#FFFFFF	#000000	##FFFFFF
##151C53	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002555

Deuteranopia (green-blind)

#001F52

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151c53;
/* rgb */ color: rgb(21, 28, 83);
/* oklch */ color: oklch(26.0% 0.100 271.9);

Tailwind

colors: {
  custom: {
    50: '#5c5884',
    500: '#151c53',
    950: '#000000',
  },
}

SCSS

$custom: #151c53;
$custom-light: #5c5884;
$custom-dark: #000000;

JSON

{
  "hex": "#151c53",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 83
  },
  "hsl": {
    "h": 233.226,
    "s": 59.615,
    "l": 20.392
  },
  "oklch": {
    "l": 0.25982,
    "c": 0.09957,
    "h": 271.9
  },
  "luminance": 0.01614
}

Semantic roles & 50–950 ramp

primary

#151C53

secondary

#8B8239

accent

#D145E3

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #151C53

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

Preview Lab → · Contrast checker → · Palette generator →