#010A27#010A27

#010A27 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 15.8% C 0.063 H 262.0°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#010A27
RGB	rgb(1, 10, 39)
HSL	hsl(226, 95%, 8%)
HSV	hsv(226, 97%, 15%)
CMYK	cmyk(97.4%, 74.4%, 0%, 84.7%)
CIE-LAB	lab(3.34, 5.55, -19.11)
CIE-LCH	lch(3.34, 19.90, 286.19°)
OKLab	oklab(15.78% -0.0088 -0.0623)
OKLCH	oklch(15.78% 0.063 262)
XYZ	xyz(0.4871, 0.3700, 1.9648)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A27 #271E01

analogous

#011D27 #010A27 #0B0127

triadic

#010A27 #27010A #0A2701

tetradic

#010A27 #27011D #271E01 #01270B

square

#010A27 #27011D #271E01 #01270B

split-complementary

#010A27 #270B01 #1D2701

monochromatic

#01081E #01081E #010A27 #031963 #04299E

Accessibility & contrast

On white

19.55

#010A27 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#010A27 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A27

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A27	#FFFFFF	#000000	##FFFFFF
##010A27	1.00	19.55	1.07	19.55
#FFFFFF	19.55	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E28

Deuteranopia (green-blind)

#000A26

Tritanopia (blue-blind)

#001116

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #010a27;
/* rgb */ color: rgb(1, 10, 39);
/* oklch */ color: oklch(15.8% 0.063 262.0);

Tailwind

colors: {
  custom: {
    50: '#474b61',
    500: '#010a27',
    950: '#000000',
  },
}

SCSS

$custom: #010a27;
$custom-light: #474b61;
$custom-dark: #000000;

JSON

{
  "hex": "#010a27",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 39
  },
  "hsl": {
    "h": 225.789,
    "s": 95,
    "l": 7.843
  },
  "oklch": {
    "l": 0.15782,
    "c": 0.06292,
    "h": 262
  },
  "luminance": 0.0037
}

Semantic roles & 50–950 ramp

primary

#010A27

secondary

#6E5916

accent

#CC29FF

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000105

muted

#777779

Preview Lab

Preview with #010A27

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

Preview Lab → · Contrast checker → · Palette generator →