#030B31#030B31

#030B31 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.4% C 0.077 H 266.1°. Best body text is #FFFFFF at 19.16:1 contrast (WCAG AA passes).

Color values

HEX	#030B31
RGB	rgb(3, 11, 49)
HSL	hsl(230, 88%, 10%)
HSV	hsv(230, 94%, 19%)
CMYK	cmyk(93.9%, 77.6%, 0%, 80.8%)
CIE-LAB	lab(4.34, 10.44, -25.07)
CIE-LCH	lch(4.34, 27.16, 292.60°)
OKLab	oklab(17.39% -0.0052 -0.0764)
OKLCH	oklch(17.39% 0.077 266.1)
XYZ	xyz(0.7114, 0.4804, 2.9604)
Luminance	0.0048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.53

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030B31 #312903

analogous

#032231 #030B31 #120331

triadic

#030B31 #31030B #0B3103

tetradic

#030B31 #310322 #312903 #033112

square

#030B31 #310322 #312903 #033112

split-complementary

#030B31 #311203 #223103

monochromatic

#02061D #02061D #030B31 #07186B #0A25A4

Accessibility & contrast

On white

19.16

#030B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#030B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030B31

19.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030B31	#FFFFFF	#000000	##FFFFFF
##030B31	1.00	19.16	1.10	19.16
#FFFFFF	19.16	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001132

Deuteranopia (green-blind)

#000D30

Tritanopia (blue-blind)

#00151C

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #030b31;
/* rgb */ color: rgb(3, 11, 49);
/* oklch */ color: oklch(17.4% 0.077 266.1);

Tailwind

colors: {
  custom: {
    50: '#4a4b69',
    500: '#030b31',
    950: '#000000',
  },
}

SCSS

$custom: #030b31;
$custom-light: #4a4b69;
$custom-dark: #000000;

JSON

{
  "hex": "#030b31",
  "rgb": {
    "r": 3,
    "g": 11,
    "b": 49
  },
  "hsl": {
    "h": 229.565,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.17392,
    "c": 0.07662,
    "h": 266.1
  },
  "luminance": 0.0048
}

Semantic roles & 50–950 ramp

primary

#030B31

secondary

#74651B

accent

#D929FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #030B31

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

Preview Lab → · Contrast checker → · Palette generator →