#151F55#151F55

#151F55 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.8% C 0.098 H 270.4°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#151F55
RGB	rgb(21, 31, 85)
HSL	hsl(231, 60%, 21%)
HSV	hsv(231, 75%, 33%)
CMYK	cmyk(75.3%, 63.5%, 0%, 66.7%)
CIE-LAB	lab(14.37, 16.55, -34.14)
CIE-LCH	lch(14.37, 37.94, 295.86°)
OKLab	oklab(26.82% 0.0006 -0.0984)
OKLCH	oklch(26.82% 0.098 270.4)
XYZ	xyz(2.4384, 1.7950, 8.8105)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F55 #554B15

analogous

#153F55 #151F55 #2B1555

triadic

#151F55 #55151F #1F5515

tetradic

#151F55 #55153F #554B15 #15552B

square

#151F55 #55153F #554B15 #15552B

split-complementary

#151F55 #552B15 #3F5515

monochromatic

#060919 #090D24 #151F55 #213186 #2D43B7

Accessibility & contrast

On white

15.45

#151F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#151F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F55

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F55	#FFFFFF	#000000	##FFFFFF
##151F55	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002757

Deuteranopia (green-blind)

#002254

Tritanopia (blue-blind)

#002C36

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #151f55;
/* rgb */ color: rgb(21, 31, 85);
/* oklch */ color: oklch(26.8% 0.098 270.4);

Tailwind

colors: {
  custom: {
    50: '#5c5a85',
    500: '#151f55',
    950: '#000000',
  },
}

SCSS

$custom: #151f55;
$custom-light: #5c5a85;
$custom-dark: #000000;

JSON

{
  "hex": "#151f55",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 85
  },
  "hsl": {
    "h": 230.625,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26823,
    "c": 0.0984,
    "h": 270.4
  },
  "luminance": 0.01795
}

Semantic roles & 50–950 ramp

primary

#151F55

secondary

#8D8039

accent

#CB44E4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151F55

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

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