#03102F#03102F

#03102F is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.4% C 0.066 H 262.2°. Best body text is #FFFFFF at 18.77:1 contrast (WCAG AA passes).

Color values

HEX	#03102F
RGB	rgb(3, 16, 47)
HSL	hsl(222, 88%, 10%)
HSV	hsv(222, 94%, 18%)
CMYK	cmyk(93.6%, 66%, 0%, 81.6%)
CIE-LAB	lab(5.38, 6.97, -21.93)
CIE-LCH	lch(5.38, 23.01, 287.62°)
OKLab	oklab(18.41% -0.009 -0.065)
OKLCH	oklch(18.41% 0.066 262.2)
XYZ	xyz(0.7357, 0.5951, 2.7649)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.60

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03102F #2F2203

analogous

#03262F #03102F #0C032F

triadic

#03102F #2F0310 #102F03

tetradic

#03102F #2F0326 #2F2203 #032F0C

square

#03102F #2F0326 #2F2203 #032F0C

split-complementary

#03102F #2F0C03 #262F03

monochromatic

#020A1D #020A1D #03102F #072469 #0A37A2

Accessibility & contrast

On white

18.77

#03102F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#03102F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03102F

18.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03102F	#FFFFFF	#000000	##FFFFFF
##03102F	1.00	18.77	1.12	18.77
#FFFFFF	18.77	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001430

Deuteranopia (green-blind)

#00102E

Tritanopia (blue-blind)

#00181D

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #03102f;
/* rgb */ color: rgb(3, 16, 47);
/* oklch */ color: oklch(18.4% 0.066 262.2);

Tailwind

colors: {
  custom: {
    50: '#4a4e68',
    500: '#03102f',
    950: '#000000',
  },
}

SCSS

$custom: #03102f;
$custom-light: #4a4e68;
$custom-dark: #000000;

JSON

{
  "hex": "#03102f",
  "rgb": {
    "r": 3,
    "g": 16,
    "b": 47
  },
  "hsl": {
    "h": 222.273,
    "s": 88,
    "l": 9.804
  },
  "oklch": {
    "l": 0.1841,
    "c": 0.06566,
    "h": 262.2
  },
  "luminance": 0.00595
}

Semantic roles & 50–950 ramp

primary

#03102F

secondary

#73591B

accent

#BF2AFE

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #03102F

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

Preview Lab → · Contrast checker → · Palette generator →