#031533#031533

#031533 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.1% C 0.065 H 258.6°. Best body text is #FFFFFF at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#031533
RGB	rgb(3, 21, 51)
HSL	hsl(218, 89%, 11%)
HSV	hsv(218, 94%, 20%)
CMYK	cmyk(94.1%, 58.8%, 0%, 80%)
CIE-LAB	lab(7.18, 5.99, -22.00)
CIE-LCH	lch(7.18, 22.80, 285.24°)
OKLab	oklab(20.15% -0.0127 -0.0635)
OKLCH	oklch(20.15% 0.065 258.6)
XYZ	xyz(0.9030, 0.7946, 3.2371)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031533 #332103

analogous

#032D33 #031533 #090333

triadic

#031533 #330315 #153303

tetradic

#031533 #33032D #332103 #033309

square

#031533 #33032D #332103 #033309

split-complementary

#031533 #330903 #2D3303

monochromatic

#020C1D #020C1D #031533 #062D6D #0A45A7

Accessibility & contrast

On white

18.12

#031533 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#031533 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031533

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031533	#FFFFFF	#000000	##FFFFFF
##031533	1.00	18.12	1.16	18.12
#FFFFFF	18.12	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041834

Deuteranopia (green-blind)

#001432

Tritanopia (blue-blind)

#001C21

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #031533;
/* rgb */ color: rgb(3, 21, 51);
/* oklch */ color: oklch(20.1% 0.065 258.6);

Tailwind

colors: {
  custom: {
    50: '#4c516b',
    500: '#031533',
    950: '#000000',
  },
}

SCSS

$custom: #031533;
$custom-light: #4c516b;
$custom-dark: #000000;

JSON

{
  "hex": "#031533",
  "rgb": {
    "r": 3,
    "g": 21,
    "b": 51
  },
  "hsl": {
    "h": 217.5,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20147,
    "c": 0.06474,
    "h": 258.6
  },
  "luminance": 0.00795
}

Semantic roles & 50–950 ramp

primary

#031533

secondary

#76541C

accent

#AF29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #031533

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

Preview Lab → · Contrast checker → · Palette generator →