#0A1827#0A1827

#0A1827 is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.5% C 0.036 H 251.5°. Best body text is #FFFFFF at 17.91:1 contrast (WCAG AA passes).

Color values

HEX	#0A1827
RGB	rgb(10, 24, 39)
HSL	hsl(211, 59%, 10%)
HSV	hsv(211, 74%, 15%)
CMYK	cmyk(74.4%, 38.5%, 0%, 84.7%)
CIE-LAB	lab(7.81, -0.14, -12.10)
CIE-LCH	lch(7.81, 12.10, 269.32°)
OKLab	oklab(20.49% -0.0114 -0.0341)
OKLCH	oklch(20.49% 0.036 251.5)
XYZ	xyz(0.8179, 0.8642, 2.0428)
Luminance	0.0086 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1827 #27190A

analogous

#0A2727 #0A1827 #0A0A27

triadic

#0A1827 #270A18 #18270A

tetradic

#0A1827 #270A27 #27190A #0A270A

square

#0A1827 #270A27 #27190A #0A270A

split-complementary

#0A1827 #270A0A #27270A

monochromatic

#060F18 #060F18 #0A1827 #163658 #235488

Accessibility & contrast

On white

17.91

#0A1827 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A1827 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1827

17.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1827	#FFFFFF	#000000	##FFFFFF
##0A1827	1.00	17.91	1.17	17.91
#FFFFFF	17.91	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121928

Deuteranopia (green-blind)

#0E1627

Tritanopia (blue-blind)

#001B1D

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a1827;
/* rgb */ color: rgb(10, 24, 39);
/* oklch */ color: oklch(20.5% 0.036 251.5);

Tailwind

colors: {
  custom: {
    50: '#4c5461',
    500: '#0a1827',
    950: '#000000',
  },
}

SCSS

$custom: #0a1827;
$custom-light: #4c5461;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1827",
  "rgb": {
    "r": 10,
    "g": 24,
    "b": 39
  },
  "hsl": {
    "h": 211.034,
    "s": 59.184,
    "l": 9.608
  },
  "oklch": {
    "l": 0.20493,
    "c": 0.03596,
    "h": 251.5
  },
  "luminance": 0.00864
}

Semantic roles & 50–950 ramp

primary

#0A1827

secondary

#644729

accent

#9745E2

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010205

muted

#777879

Preview Lab

Preview with #0A1827

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

Preview Lab → · Contrast checker → · Palette generator →