#031D4E#031D4E

#031D4E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.096 H 260.9°. Best body text is #FFFFFF at 16.28:1 contrast (WCAG AA passes).

Color values

HEX	#031D4E
RGB	rgb(3, 29, 78)
HSL	hsl(219, 93%, 16%)
HSV	hsv(219, 96%, 31%)
CMYK	cmyk(96.2%, 62.8%, 0%, 69.4%)
CIE-LAB	lab(12.27, 12.67, -32.83)
CIE-LCH	lch(12.27, 35.19, 291.10°)
OKLab	oklab(24.81% -0.0152 -0.095)
OKLCH	oklch(24.81% 0.096 260.9)
XYZ	xyz(1.8516, 1.4479, 7.3881)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031D4E #4E3403

analogous

#03424E #031D4E #0E034E

triadic

#031D4E #4E031D #1D4E03

tetradic

#031D4E #4E0342 #4E3403 #034E0E

square

#031D4E #4E0342 #4E3403 #034E0E

split-complementary

#031D4E #4E0E03 #424E03

monochromatic

#010B1D #010B1D #031D4E #053389 #0849C4

Accessibility & contrast

On white

16.28

#031D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#031D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031D4E

16.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031D4E	#FFFFFF	#000000	##FFFFFF
##031D4E	1.00	16.28	1.29	16.28
#FFFFFF	16.28	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #031d4e;
/* rgb */ color: rgb(3, 29, 78);
/* oklch */ color: oklch(24.8% 0.096 260.9);

Tailwind

colors: {
  custom: {
    50: '#545880',
    500: '#031d4e',
    950: '#000000',
  },
}

SCSS

$custom: #031d4e;
$custom-light: #545880;
$custom-dark: #000000;

JSON

{
  "hex": "#031d4e",
  "rgb": {
    "r": 3,
    "g": 29,
    "b": 78
  },
  "hsl": {
    "h": 219.2,
    "s": 92.593,
    "l": 15.882
  },
  "oklch": {
    "l": 0.24813,
    "c": 0.09617,
    "h": 260.9
  },
  "luminance": 0.01448
}

Semantic roles & 50–950 ramp

primary

#031D4E

secondary

#8E681E

accent

#B529FF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03030A

muted

#78787C

Preview Lab

Preview with #031D4E

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

Preview Lab → · Contrast checker → · Palette generator →