#150B4B#150B4B

#150B4B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 22.0% C 0.110 H 279.6°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#150B4B
RGB	rgb(21, 11, 75)
HSL	hsl(249, 74%, 17%)
HSV	hsv(249, 85%, 29%)
CMYK	cmyk(72%, 85.3%, 0%, 70.6%)
CIE-LAB	lab(8.19, 26.46, -37.42)
CIE-LCH	lch(8.19, 45.83, 305.27°)
OKLab	oklab(22.02% 0.0182 -0.108)
OKLCH	oklch(22.02% 0.11 279.6)
XYZ	xyz(1.6985, 0.9066, 6.7407)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.56

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#150B4B #414B0B

analogous

#0B214B #150B4B #350B4B

triadic

#150B4B #4B150B #0B4B15

tetradic

#150B4B #4B0B21 #414B0B #0B4B35

square

#150B4B #4B0B21 #414B0B #0B4B35

split-complementary

#150B4B #4B350B #214B0B

monochromatic

#07041B #07041B #150B4B #241380 #331BB6

Accessibility & contrast

On white

17.78

#150B4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#150B4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #150B4B

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##150B4B	#FFFFFF	#000000	##FFFFFF
##150B4B	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4D

Deuteranopia (green-blind)

#00154A

Tritanopia (blue-blind)

#001E2B

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #150b4b;
/* rgb */ color: rgb(21, 11, 75);
/* oklch */ color: oklch(22.0% 0.110 279.6);

Tailwind

colors: {
  custom: {
    50: '#5c4b7e',
    500: '#150b4b',
    950: '#000000',
  },
}

SCSS

$custom: #150b4b;
$custom-light: #5c4b7e;
$custom-dark: #000000;

JSON

{
  "hex": "#150b4b",
  "rgb": {
    "r": 21,
    "g": 11,
    "b": 75
  },
  "hsl": {
    "h": 249.375,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.22024,
    "c": 0.10955,
    "h": 279.6
  },
  "luminance": 0.00907
}

Semantic roles & 50–950 ramp

primary

#150B4B

secondary

#79872B

accent

#F137D4

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #150B4B

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

Preview Lab → · Contrast checker → · Palette generator →