#01031E#01031E

#01031E is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 12.3% C 0.062 H 267.0°. Best body text is #FFFFFF at 20.33:1 contrast (WCAG AA passes).

Color values

HEX	#01031E
RGB	rgb(1, 3, 30)
HSL	hsl(236, 94%, 6%)
HSV	hsv(236, 97%, 12%)
CMYK	cmyk(96.7%, 90%, 0%, 88.2%)
CIE-LAB	lab(1.49, 5.01, -14.90)
CIE-LCH	lch(1.49, 15.72, 288.57°)
OKLab	oklab(12.33% -0.0033 -0.0621)
OKLCH	oklch(12.33% 0.062 267)
XYZ	xyz(0.2793, 0.1653, 1.2452)
Luminance	0.0016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01031E #1E1C01

analogous

#01111E #01031E #0D011E

triadic

#01031E #1E0103 #031E01

tetradic

#01031E #1E0111 #1E1C01 #011E0D

square

#01031E #1E0111 #1E1C01 #011E0D

split-complementary

#01031E #1E0D01 #111E01

monochromatic

#01031E #01031E #01031E #030959 #050F94

Accessibility & contrast

On white

20.33

#01031E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#01031E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01031E

20.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01031E	#FFFFFF	#000000	##FFFFFF
##01031E	1.00	20.33	1.03	20.33
#FFFFFF	20.33	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.33	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: #01031e;
/* rgb */ color: rgb(1, 3, 30);
/* oklch */ color: oklch(12.3% 0.062 267.0);

Tailwind

colors: {
  custom: {
    50: '#464859',
    500: '#01031e',
    950: '#000000',
  },
}

SCSS

$custom: #01031e;
$custom-light: #464859;
$custom-dark: #000000;

JSON

{
  "hex": "#01031e",
  "rgb": {
    "r": 1,
    "g": 3,
    "b": 30
  },
  "hsl": {
    "h": 235.862,
    "s": 93.548,
    "l": 6.078
  },
  "oklch": {
    "l": 0.12331,
    "c": 0.06217,
    "h": 267
  },
  "luminance": 0.00165
}

Semantic roles & 50–950 ramp

primary

#01031E

secondary

#666015

accent

#F029FF

background

#F3F4F5

surface

#E5E6E9

border

#C1C2C5

text

#000003

muted

#767778

Preview Lab

Preview with #01031E

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

Preview Lab → · Contrast checker → · Palette generator →