#0A0640#0A0640

#0A0640 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.9% C 0.103 H 273.8°. Best body text is #FFFFFF at 18.87:1 contrast (WCAG AA passes).

Color values

HEX	#0A0640
RGB	rgb(10, 6, 64)
HSL	hsl(244, 83%, 14%)
HSV	hsv(244, 91%, 25%)
CMYK	cmyk(84.4%, 90.6%, 0%, 74.9%)
CIE-LAB	lab(5.10, 22.67, -34.76)
CIE-LCH	lch(5.10, 41.49, 303.11°)
OKLab	oklab(18.89% 0.0068 -0.1027)
OKLCH	oklch(18.89% 0.103 273.8)
XYZ	xyz(1.1154, 0.5648, 4.8997)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.36

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0640 #3C4006

analogous

#061F40 #0A0640 #270640

triadic

#0A0640 #400A06 #06400A

tetradic

#0A0640 #40061F #3C4006 #064027

square

#0A0640 #40061F #3C4006 #064027

split-complementary

#0A0640 #402706 #1F4006

monochromatic

#04031C #04031C #0A0640 #130B78 #1B10B0

Accessibility & contrast

On white

18.87

#0A0640 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#0A0640 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0640

18.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0640	#FFFFFF	#000000	##FFFFFF
##0A0640	1.00	18.87	1.11	18.87
#FFFFFF	18.87	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001442

Deuteranopia (green-blind)

#000E3F

Tritanopia (blue-blind)

#001823

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #0a0640;
/* rgb */ color: rgb(10, 6, 64);
/* oklch */ color: oklch(18.9% 0.103 273.8);

Tailwind

colors: {
  custom: {
    50: '#544876',
    500: '#0a0640',
    950: '#000000',
  },
}

SCSS

$custom: #0a0640;
$custom-light: #544876;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0640",
  "rgb": {
    "r": 10,
    "g": 6,
    "b": 64
  },
  "hsl": {
    "h": 244.138,
    "s": 82.857,
    "l": 13.725
  },
  "oklch": {
    "l": 0.18893,
    "c": 0.10296,
    "h": 273.8
  },
  "luminance": 0.00565
}

Semantic roles & 50–950 ramp

primary

#0A0640

secondary

#798022

accent

#F92FEB

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0A0640

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

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