#151F7F#151F7F

#151F7F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.158 H 269.0°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#151F7F
RGB	rgb(21, 31, 127)
HSL	hsl(234, 72%, 29%)
HSV	hsv(234, 83%, 50%)
CMYK	cmyk(83.5%, 75.6%, 0%, 50.2%)
CIE-LAB	lab(18.68, 33.13, -54.56)
CIE-LCH	lch(18.68, 63.82, 301.27°)
OKLab	oklab(31.26% -0.0027 -0.1581)
OKLCH	oklch(31.26% 0.158 269)
XYZ	xyz(4.6287, 2.6712, 20.3462)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F7F #7F7515

analogous

#15547F #151F7F #40157F

triadic

#151F7F #7F151F #1F7F15

tetradic

#151F7F #7F1554 #7F7515 #157F40

square

#151F7F #7F1554 #7F7515 #157F40

split-complementary

#151F7F #7F4015 #547F15

monochromatic

#04061A #0C124A #151F7F #1E2CB4 #3142DD

Accessibility & contrast

On white

13.69

#151F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#151F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F7F

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F7F	#FFFFFF	#000000	##FFFFFF
##151F7F	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#00287D

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #151f7f;
/* rgb */ color: rgb(21, 31, 127);
/* oklch */ color: oklch(31.3% 0.158 269.0);

Tailwind

colors: {
  custom: {
    50: '#685ba5',
    500: '#151f7f',
    950: '#000000',
  },
}

SCSS

$custom: #151f7f;
$custom-light: #685ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#151f7f",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 127
  },
  "hsl": {
    "h": 234.34,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31265,
    "c": 0.15809,
    "h": 269
  },
  "luminance": 0.02672
}

Semantic roles & 50–950 ramp

primary

#151F7F

secondary

#B4A93C

accent

#DD39EE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #151F7F

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

Preview Lab → · Contrast checker → · Palette generator →