#151C57#151C57

#151C57 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.4% C 0.106 H 271.7°. Best body text is #FFFFFF at 15.72:1 contrast (WCAG AA passes).

Color values

HEX	#151C57
RGB	rgb(21, 28, 87)
HSL	hsl(234, 61%, 21%)
HSV	hsv(234, 76%, 34%)
CMYK	cmyk(75.9%, 67.8%, 0%, 65.9%)
CIE-LAB	lab(13.70, 19.58, -36.59)
CIE-LCH	lch(13.70, 41.50, 298.15°)
OKLab	oklab(26.38% 0.0032 -0.1056)
OKLCH	oklch(26.38% 0.106 271.7)
XYZ	xyz(2.4442, 1.6778, 9.2100)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C57 #575015

analogous

#153D57 #151C57 #2F1557

triadic

#151C57 #57151C #1C5715

tetradic

#151C57 #57153D #575015 #15572F

square

#151C57 #57153D #575015 #15572F

split-complementary

#151C57 #572F15 #3D5715

monochromatic

#060819 #090C26 #151C57 #212C88 #2D3CBA

Accessibility & contrast

On white

15.72

#151C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#151C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C57

15.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C57	#FFFFFF	#000000	##FFFFFF
##151C57	1.00	15.72	1.34	15.72
#FFFFFF	15.72	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002659

Deuteranopia (green-blind)

#002056

Tritanopia (blue-blind)

#002B36

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151c57;
/* rgb */ color: rgb(21, 28, 87);
/* oklch */ color: oklch(26.4% 0.106 271.7);

Tailwind

colors: {
  custom: {
    50: '#5d5887',
    500: '#151c57',
    950: '#000000',
  },
}

SCSS

$custom: #151c57;
$custom-light: #5d5887;
$custom-dark: #000000;

JSON

{
  "hex": "#151c57",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 87
  },
  "hsl": {
    "h": 233.636,
    "s": 61.111,
    "l": 21.176
  },
  "oklch": {
    "l": 0.26381,
    "c": 0.10569,
    "h": 271.7
  },
  "luminance": 0.01678
}

Semantic roles & 50–950 ramp

primary

#151C57

secondary

#8F8639

accent

#D344E4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151C57

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

Preview Lab → · Contrast checker → · Palette generator →