#151F7E#151F7E

#151F7E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.157 H 269.0°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#151F7E
RGB	rgb(21, 31, 126)
HSL	hsl(234, 71%, 29%)
HSV	hsv(234, 83%, 49%)
CMYK	cmyk(83.3%, 75.4%, 0%, 50.6%)
CIE-LAB	lab(18.56, 32.75, -54.11)
CIE-LCH	lch(18.56, 63.25, 301.19°)
OKLab	oklab(31.15% -0.0026 -0.1568)
OKLCH	oklch(31.15% 0.157 269)
XYZ	xyz(4.5638, 2.6452, 20.0047)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F7E #7E7415

analogous

#15547E #151F7E #40157E

triadic

#151F7E #7E151F #1F7E15

tetradic

#151F7E #7E1554 #7E7415 #157E40

square

#151F7E #7E1554 #7E7415 #157E40

split-complementary

#151F7E #7E4015 #547E15

monochromatic

#04061A #0C124A #151F7E #1E2CB2 #3141DD

Accessibility & contrast

On white

13.73

#151F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#151F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F7E

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F7E	#FFFFFF	#000000	##FFFFFF
##151F7E	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#00287C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #151f7e;
/* rgb */ color: rgb(21, 31, 126);
/* oklch */ color: oklch(31.2% 0.157 269.0);

Tailwind

colors: {
  custom: {
    50: '#685ba4',
    500: '#151f7e',
    950: '#000000',
  },
}

SCSS

$custom: #151f7e;
$custom-light: #685ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#151f7e",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 126
  },
  "hsl": {
    "h": 234.286,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31151,
    "c": 0.15679,
    "h": 269
  },
  "luminance": 0.02646
}

Semantic roles & 50–950 ramp

primary

#151F7E

secondary

#B3A83C

accent

#DD3AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #151F7E

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

Preview Lab → · Contrast checker → · Palette generator →