#0A1D2F#0A1D2F

#0A1D2F is a very dark, muted cyan. Relative luminance 0.011; OKLCH L 22.5% C 0.043 H 249.2°. Best body text is #FFFFFF at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#0A1D2F
RGB	rgb(10, 29, 47)
HSL	hsl(209, 65%, 11%)
HSV	hsv(209, 79%, 18%)
CMYK	cmyk(78.7%, 38.3%, 0%, 81.6%)
CIE-LAB	lab(10.17, -0.49, -14.29)
CIE-LCH	lch(10.17, 14.29, 268.04°)
OKLab	oklab(22.51% -0.0154 -0.0404)
OKLCH	oklch(22.51% 0.043 249.2)
XYZ	xyz(1.0774, 1.1484, 2.8537)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1D2F #2F1C0A

analogous

#0A2F2E #0A1D2F #0A0A2F

triadic

#0A1D2F #2F0A1D #1D2F0A

tetradic

#0A1D2F #2E0A2F #2F1C0A #0A2F0A

square

#0A1D2F #2E0A2F #2F1C0A #0A2F0A

split-complementary

#0A1D2F #2F0A0A #2F2E0A

monochromatic

#051019 #051019 #0A1D2F #153C61 #1F5B94

Accessibility & contrast

On white

17.08

#0A1D2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#0A1D2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1D2F

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1D2F	#FFFFFF	#000000	##FFFFFF
##0A1D2F	1.00	17.08	1.23	17.08
#FFFFFF	17.08	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151E30

Deuteranopia (green-blind)

#101A2F

Tritanopia (blue-blind)

#002123

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #0a1d2f;
/* rgb */ color: rgb(10, 29, 47);
/* oklch */ color: oklch(22.5% 0.043 249.2);

Tailwind

colors: {
  custom: {
    50: '#4e5867',
    500: '#0a1d2f',
    950: '#000000',
  },
}

SCSS

$custom: #0a1d2f;
$custom-light: #4e5867;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1d2f",
  "rgb": {
    "r": 10,
    "g": 29,
    "b": 47
  },
  "hsl": {
    "h": 209.189,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.22512,
    "c": 0.04321,
    "h": 249.2
  },
  "luminance": 0.01148
}

Semantic roles & 50–950 ramp

primary

#0A1D2F

secondary

#6C4929

accent

#9240E8

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #0A1D2F

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

Preview Lab → · Contrast checker → · Palette generator →