#00031E#00031E

#00031E is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 12.1% C 0.063 H 263.3°. Best body text is #FFFFFF at 20.35:1 contrast (WCAG AA passes).

Color values

HEX	#00031E
RGB	rgb(0, 3, 30)
HSL	hsl(234, 100%, 6%)
HSV	hsv(234, 100%, 12%)
CMYK	cmyk(100%, 90%, 0%, 88.2%)
CIE-LAB	lab(1.43, 4.75, -14.99)
CIE-LCH	lch(1.43, 15.73, 287.57°)
OKLab	oklab(12.15% -0.0074 -0.063)
OKLCH	oklch(12.15% 0.063 263.3)
XYZ	xyz(0.2668, 0.1588, 1.2446)
Luminance	0.0016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00031E #1E1B00

analogous

#00121E #00031E #0C001E

triadic

#00031E #1E0003 #031E00

tetradic

#00031E #1E0012 #1E1B00 #001E0C

square

#00031E #1E0012 #1E1B00 #001E0C

split-complementary

#00031E #1E0C00 #121E00

monochromatic

#00031F #00031F #00031F #00095B #000F98

Accessibility & contrast

On white

20.35

#00031E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#00031E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00031E

20.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00031E	#FFFFFF	#000000	##FFFFFF
##00031E	1.00	20.35	1.03	20.35
#FFFFFF	20.35	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00071F

Deuteranopia (green-blind)

#00041D

Tritanopia (blue-blind)

#00090E

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #00031e;
/* rgb */ color: rgb(0, 3, 30);
/* oklch */ color: oklch(12.1% 0.063 263.3);

Tailwind

colors: {
  custom: {
    50: '#464859',
    500: '#00031e',
    950: '#000000',
  },
}

SCSS

$custom: #00031e;
$custom-light: #464859;
$custom-dark: #000000;

JSON

{
  "hex": "#00031e",
  "rgb": {
    "r": 0,
    "g": 3,
    "b": 30
  },
  "hsl": {
    "h": 234,
    "s": 100,
    "l": 5.882
  },
  "oklch": {
    "l": 0.12149,
    "c": 0.06347,
    "h": 263.3
  },
  "luminance": 0.00159
}

Semantic roles & 50–950 ramp

primary

#00031E

secondary

#685F12

accent

#EA29FF

background

#F3F4F5

surface

#E5E6E9

border

#C1C2C5

text

#000003

muted

#767778

Preview Lab

Preview with #00031E

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

Preview Lab → · Contrast checker → · Palette generator →