#151D7C#151D7C

#151D7C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.156 H 269.4°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#151D7C
RGB	rgb(21, 29, 124)
HSL	hsl(235, 71%, 28%)
HSV	hsv(235, 83%, 49%)
CMYK	cmyk(83.1%, 76.6%, 0%, 51.4%)
CIE-LAB	lab(17.89, 33.27, -53.95)
CIE-LCH	lch(17.89, 63.39, 301.66°)
OKLab	oklab(30.6% -0.0015 -0.1563)
OKLCH	oklch(30.6% 0.156 269.4)
XYZ	xyz(4.3855, 2.4929, 19.3149)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D7C #7C7415

analogous

#15507C #151D7C #40157C

triadic

#151D7C #7C151D #1D7C15

tetradic

#151D7C #7C1550 #7C7415 #157C40

square

#151D7C #7C1550 #7C7415 #157C40

split-complementary

#151D7C #7C4015 #507C15

monochromatic

#04061A #0C1148 #151D7C #1E29B0 #303DDC

Accessibility & contrast

On white

14.01

#151D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#151D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D7C

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D7C	#FFFFFF	#000000	##FFFFFF
##151D7C	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317F

Deuteranopia (green-blind)

#00277A

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #151d7c;
/* rgb */ color: rgb(21, 29, 124);
/* oklch */ color: oklch(30.6% 0.156 269.4);

Tailwind

colors: {
  custom: {
    50: '#685aa3',
    500: '#151d7c',
    950: '#000000',
  },
}

SCSS

$custom: #151d7c;
$custom-light: #685aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#151d7c",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 124
  },
  "hsl": {
    "h": 235.34,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30601,
    "c": 0.15631,
    "h": 269.4
  },
  "luminance": 0.02493
}

Semantic roles & 50–950 ramp

primary

#151D7C

secondary

#B1A83C

accent

#E03AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #151D7C

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

Preview Lab → · Contrast checker → · Palette generator →