#010A31#010A31

#010A31 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.0% C 0.079 H 263.8°. Best body text is #FFFFFF at 19.28:1 contrast (WCAG AA passes).

Color values

HEX	#010A31
RGB	rgb(1, 10, 49)
HSL	hsl(229, 96%, 10%)
HSV	hsv(229, 98%, 19%)
CMYK	cmyk(98%, 79.6%, 0%, 80.8%)
CIE-LAB	lab(4.02, 10.32, -25.59)
CIE-LCH	lch(4.02, 27.59, 291.98°)
OKLab	oklab(16.98% -0.0086 -0.0789)
OKLCH	oklch(16.98% 0.079 263.8)
XYZ	xyz(0.6752, 0.4452, 2.9555)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.46

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A31 #312801

analogous

#012231 #010A31 #100131

triadic

#010A31 #31010A #0A3101

tetradic

#010A31 #310122 #312801 #013110

square

#010A31 #310122 #312801 #013110

split-complementary

#010A31 #311001 #223101

monochromatic

#01061E #01061E #010A31 #02166D #0322A9

Accessibility & contrast

On white

19.28

#010A31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#010A31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A31

19.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A31	#FFFFFF	#000000	##FFFFFF
##010A31	1.00	19.28	1.09	19.28
#FFFFFF	19.28	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001132

Deuteranopia (green-blind)

#000C30

Tritanopia (blue-blind)

#00151C

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010a31;
/* rgb */ color: rgb(1, 10, 49);
/* oklch */ color: oklch(17.0% 0.079 263.8);

Tailwind

colors: {
  custom: {
    50: '#494b69',
    500: '#010a31',
    950: '#000000',
  },
}

SCSS

$custom: #010a31;
$custom-light: #494b69;
$custom-dark: #000000;

JSON

{
  "hex": "#010a31",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 49
  },
  "hsl": {
    "h": 228.75,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.16981,
    "c": 0.07937,
    "h": 263.8
  },
  "luminance": 0.00445
}

Semantic roles & 50–950 ramp

primary

#010A31

secondary

#776517

accent

#D729FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010A31

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

Preview Lab → · Contrast checker → · Palette generator →