#151A3D#151A3D

#151A3D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.067 H 274.0°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#151A3D
RGB	rgb(21, 26, 61)
HSL	hsl(233, 49%, 16%)
HSV	hsv(233, 66%, 24%)
CMYK	cmyk(65.6%, 57.4%, 0%, 76.1%)
CIE-LAB	lab(10.81, 10.42, -23.29)
CIE-LCH	lch(10.81, 25.51, 294.10°)
OKLab	oklab(23.51% 0.0047 -0.0665)
OKLCH	oklch(23.51% 0.067 274)
XYZ	xyz(1.5207, 1.2350, 4.5722)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A3D #3D3815

analogous

#152E3D #151A3D #24153D

triadic

#151A3D #3D151A #1A3D15

tetradic

#151A3D #3D152E #3D3815 #153D24

square

#151A3D #3D152E #3D3815 #153D24

split-complementary

#151A3D #3D2415 #2E3D15

monochromatic

#080A17 #080A17 #151A3D #252D6B #344198

Accessibility & contrast

On white

16.84

#151A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A3D

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A3D	#FFFFFF	#000000	##FFFFFF
##151A3D	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081F3E

Deuteranopia (green-blind)

#031B3C

Tritanopia (blue-blind)

#012228

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151a3d;
/* rgb */ color: rgb(21, 26, 61);
/* oklch */ color: oklch(23.5% 0.067 274.0);

Tailwind

colors: {
  custom: {
    50: '#575673',
    500: '#151a3d',
    950: '#000000',
  },
}

SCSS

$custom: #151a3d;
$custom-light: #575673;
$custom-dark: #000000;

JSON

{
  "hex": "#151a3d",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 61
  },
  "hsl": {
    "h": 232.5,
    "s": 48.78,
    "l": 16.078
  },
  "oklch": {
    "l": 0.23513,
    "c": 0.06671,
    "h": 274
  },
  "luminance": 0.01235
}

Semantic roles & 50–950 ramp

primary

#151A3D

secondary

#756D39

accent

#C74FD8

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #151A3D

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

Preview Lab → · Contrast checker → · Palette generator →