#151C58#151C58

#151C58 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.107 H 271.7°. Best body text is #FFFFFF at 15.68:1 contrast (WCAG AA passes).

Color values

HEX	#151C58
RGB	rgb(21, 28, 88)
HSL	hsl(234, 61%, 21%)
HSV	hsv(234, 76%, 35%)
CMYK	cmyk(76.1%, 68.2%, 0%, 65.5%)
CIE-LAB	lab(13.79, 19.99, -37.11)
CIE-LCH	lch(13.79, 42.15, 298.31°)
OKLab	oklab(26.48% 0.0032 -0.1071)
OKLCH	oklch(26.48% 0.107 271.7)
XYZ	xyz(2.4854, 1.6943, 9.4267)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C58 #585115

analogous

#153E58 #151C58 #301558

triadic

#151C58 #58151C #1C5815

tetradic

#151C58 #58153E #585115 #155830

square

#151C58 #58153E #585115 #155830

split-complementary

#151C58 #583015 #3E5815

monochromatic

#060819 #090C27 #151C58 #212C89 #2D3BBB

Accessibility & contrast

On white

15.68

#151C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#151C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C58

15.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C58	#FFFFFF	#000000	##FFFFFF
##151C58	1.00	15.68	1.34	15.68
#FFFFFF	15.68	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265A

Deuteranopia (green-blind)

#002057

Tritanopia (blue-blind)

#002B37

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151c58;
/* rgb */ color: rgb(21, 28, 88);
/* oklch */ color: oklch(26.5% 0.107 271.7);

Tailwind

colors: {
  custom: {
    50: '#5d5888',
    500: '#151c58',
    950: '#000000',
  },
}

SCSS

$custom: #151c58;
$custom-light: #5d5888;
$custom-dark: #000000;

JSON

{
  "hex": "#151c58",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 88
  },
  "hsl": {
    "h": 233.731,
    "s": 61.468,
    "l": 21.373
  },
  "oklch": {
    "l": 0.26482,
    "c": 0.1072,
    "h": 271.7
  },
  "luminance": 0.01695
}

Semantic roles & 50–950 ramp

primary

#151C58

secondary

#908739

accent

#D443E5

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #151C58

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

Preview Lab → · Contrast checker → · Palette generator →