#151F57#151F57

#151F57 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.102 H 270.4°. Best body text is #FFFFFF at 15.38:1 contrast (WCAG AA passes).

Color values

HEX	#151F57
RGB	rgb(21, 31, 87)
HSL	hsl(231, 61%, 21%)
HSV	hsv(231, 76%, 34%)
CMYK	cmyk(75.9%, 64.4%, 0%, 65.9%)
CIE-LAB	lab(14.55, 17.38, -35.19)
CIE-LCH	lch(14.55, 39.25, 296.28°)
OKLab	oklab(27.01% 0.0006 -0.1015)
OKLCH	oklch(27.01% 0.102 270.4)
XYZ	xyz(2.5190, 1.8273, 9.2349)
Luminance	0.0183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F57 #574D15

analogous

#154057 #151F57 #2C1557

triadic

#151F57 #57151F #1F5715

tetradic

#151F57 #571540 #574D15 #15572C

square

#151F57 #571540 #574D15 #15572C

split-complementary

#151F57 #572C15 #405715

monochromatic

#060919 #090D26 #151F57 #213188 #2D42BA

Accessibility & contrast

On white

15.38

#151F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#151F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F57

15.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F57	#FFFFFF	#000000	##FFFFFF
##151F57	1.00	15.38	1.37	15.38
#FFFFFF	15.38	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002859

Deuteranopia (green-blind)

#002256

Tritanopia (blue-blind)

#002D37

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151f57;
/* rgb */ color: rgb(21, 31, 87);
/* oklch */ color: oklch(27.0% 0.102 270.4);

Tailwind

colors: {
  custom: {
    50: '#5d5a87',
    500: '#151f57',
    950: '#000000',
  },
}

SCSS

$custom: #151f57;
$custom-light: #5d5a87;
$custom-dark: #000000;

JSON

{
  "hex": "#151f57",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 87
  },
  "hsl": {
    "h": 230.909,
    "s": 61.111,
    "l": 21.176
  },
  "oklch": {
    "l": 0.27014,
    "c": 0.1015,
    "h": 270.4
  },
  "luminance": 0.01828
}

Semantic roles & 50–950 ramp

primary

#151F57

secondary

#8F8239

accent

#CC44E4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151F57

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

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