#05153B#05153B

#05153B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.0% C 0.077 H 263.2°. Best body text is #FFFFFF at 17.85:1 contrast (WCAG AA passes).

Color values

HEX	#05153B
RGB	rgb(5, 21, 59)
HSL	hsl(222, 84%, 13%)
HSV	hsv(222, 92%, 23%)
CMYK	cmyk(91.5%, 64.4%, 0%, 76.9%)
CIE-LAB	lab(7.99, 10.38, -26.48)
CIE-LCH	lch(7.99, 28.44, 291.41°)
OKLab	oklab(21.05% -0.0091 -0.0764)
OKLCH	oklch(21.05% 0.077 263.2)
XYZ	xyz(1.1199, 0.8842, 4.2485)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05153B #3B2B05

analogous

#05303B #05153B #10053B

triadic

#05153B #3B0515 #153B05

tetradic

#05153B #3B0530 #3B2B05 #053B10

square

#05153B #3B0530 #3B2B05 #053B10

split-complementary

#05153B #3B1005 #303B05

monochromatic

#020A1C #020A1C #05153B #0A2973 #0F3DAC

Accessibility & contrast

On white

17.85

#05153B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#05153B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05153B

17.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05153B	#FFFFFF	#000000	##FFFFFF
##05153B	1.00	17.85	1.18	17.85
#FFFFFF	17.85	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3C

Deuteranopia (green-blind)

#00153A

Tritanopia (blue-blind)

#001E25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #05153b;
/* rgb */ color: rgb(5, 21, 59);
/* oklch */ color: oklch(21.0% 0.077 263.2);

Tailwind

colors: {
  custom: {
    50: '#4f5171',
    500: '#05153b',
    950: '#000000',
  },
}

SCSS

$custom: #05153b;
$custom-light: #4f5171;
$custom-dark: #000000;

JSON

{
  "hex": "#05153b",
  "rgb": {
    "r": 5,
    "g": 21,
    "b": 59
  },
  "hsl": {
    "h": 222.222,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.21048,
    "c": 0.077,
    "h": 263.2
  },
  "luminance": 0.00884
}

Semantic roles & 50–950 ramp

primary

#05153B

secondary

#7C6120

accent

#BE2DFB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #05153B

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

Preview Lab → · Contrast checker → · Palette generator →