#010B2E#010B2E

#010B2E is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.9% C 0.073 H 262.9°. Best body text is #FFFFFF at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#010B2E
RGB	rgb(1, 11, 46)
HSL	hsl(227, 96%, 9%)
HSV	hsv(227, 98%, 18%)
CMYK	cmyk(97.8%, 76.1%, 0%, 82%)
CIE-LAB	lab(4.00, 8.36, -23.38)
CIE-LCH	lch(4.00, 24.83, 289.68°)
OKLab	oklab(16.85% -0.0091 -0.0725)
OKLCH	oklch(16.85% 0.073 262.9)
XYZ	xyz(0.6252, 0.4430, 2.6368)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.57

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B2E #2E2401

analogous

#01222E #010B2E #0E012E

triadic

#010B2E #2E010B #0B2E01

tetradic

#010B2E #2E0122 #2E2401 #012E0E

square

#010B2E #2E0122 #2E2401 #012E0E

split-complementary

#010B2E #2E0E01 #222E01

monochromatic

#01071E #01071E #010B2E #02196A #0428A6

Accessibility & contrast

On white

19.29

#010B2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#010B2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B2E

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B2E	#FFFFFF	#000000	##FFFFFF
##010B2E	1.00	19.29	1.09	19.29
#FFFFFF	19.29	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102F

Deuteranopia (green-blind)

#000C2D

Tritanopia (blue-blind)

#00141A

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010b2e;
/* rgb */ color: rgb(1, 11, 46);
/* oklch */ color: oklch(16.9% 0.073 262.9);

Tailwind

colors: {
  custom: {
    50: '#484b67',
    500: '#010b2e',
    950: '#000000',
  },
}

SCSS

$custom: #010b2e;
$custom-light: #484b67;
$custom-dark: #000000;

JSON

{
  "hex": "#010b2e",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 46
  },
  "hsl": {
    "h": 226.667,
    "s": 95.745,
    "l": 9.216
  },
  "oklch": {
    "l": 0.16851,
    "c": 0.07307,
    "h": 262.9
  },
  "luminance": 0.00443
}

Semantic roles & 50–950 ramp

primary

#010B2E

secondary

#745F17

accent

#CF29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #010B2E

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

Preview Lab → · Contrast checker → · Palette generator →