#151D5E#151D5E

#151D5E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.3% C 0.115 H 271.0°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#151D5E
RGB	rgb(21, 29, 94)
HSL	hsl(233, 63%, 23%)
HSV	hsv(233, 78%, 37%)
CMYK	cmyk(77.7%, 69.1%, 0%, 63.1%)
CIE-LAB	lab(14.66, 21.69, -39.72)
CIE-LCH	lch(14.66, 45.25, 298.64°)
OKLab	oklab(27.3% 0.002 -0.1148)
OKLCH	oklch(27.3% 0.115 271)
XYZ	xyz(2.7683, 1.8460, 10.7979)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D5E #5E5615

analogous

#15415E #151D5E #32155E

triadic

#151D5E #5E151D #1D5E15

tetradic

#151D5E #5E1541 #5E5615 #155E32

square

#151D5E #5E1541 #5E5615 #155E32

split-complementary

#151D5E #5E3215 #415E15

monochromatic

#060819 #0A0E2C #151D5E #202C90 #2B3CC2

Accessibility & contrast

On white

15.34

#151D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#151D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D5E

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D5E	#FFFFFF	#000000	##FFFFFF
##151D5E	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002860

Deuteranopia (green-blind)

#00225D

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151d5e;
/* rgb */ color: rgb(21, 29, 94);
/* oklch */ color: oklch(27.3% 0.115 271.0);

Tailwind

colors: {
  custom: {
    50: '#5f598c',
    500: '#151d5e',
    950: '#000000',
  },
}

SCSS

$custom: #151d5e;
$custom-light: #5f598c;
$custom-dark: #000000;

JSON

{
  "hex": "#151d5e",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 94
  },
  "hsl": {
    "h": 233.425,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27298,
    "c": 0.1148,
    "h": 271
  },
  "luminance": 0.01846
}

Semantic roles & 50–950 ramp

primary

#151D5E

secondary

#958B39

accent

#D441E7

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151D5E

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

Preview Lab → · Contrast checker → · Palette generator →