#0A0637#0A0637

#0A0637 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.7% C 0.090 H 276.0°. Best body text is #FFFFFF at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#0A0637
RGB	rgb(10, 6, 55)
HSL	hsl(245, 80%, 12%)
HSV	hsv(245, 89%, 22%)
CMYK	cmyk(81.8%, 89.1%, 0%, 78.4%)
CIE-LAB	lab(4.25, 17.69, -29.62)
CIE-LCH	lch(4.25, 34.50, 300.85°)
OKLab	oklab(17.69% 0.0095 -0.0897)
OKLCH	oklch(17.69% 0.09 276)
XYZ	xyz(0.8797, 0.4705, 3.6582)
Luminance	0.0047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0637 #333706

analogous

#061B37 #0A0637 #230637

triadic

#0A0637 #370A06 #06370A

tetradic

#0A0637 #37061B #333706 #063723

square

#0A0637 #37061B #333706 #063723

split-complementary

#0A0637 #372306 #1B3706

monochromatic

#05031C #05031C #0A0637 #140C6E #1E12A5

Accessibility & contrast

On white

19.19

#0A0637 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0A0637 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0637

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0637	#FFFFFF	#000000	##FFFFFF
##0A0637	1.00	19.19	1.09	19.19
#FFFFFF	19.19	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001138

Deuteranopia (green-blind)

#000D36

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0a0637;
/* rgb */ color: rgb(10, 6, 55);
/* oklch */ color: oklch(17.7% 0.090 276.0);

Tailwind

colors: {
  custom: {
    50: '#50486e',
    500: '#0a0637',
    950: '#000000',
  },
}

SCSS

$custom: #0a0637;
$custom-light: #50486e;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0637",
  "rgb": {
    "r": 10,
    "g": 6,
    "b": 55
  },
  "hsl": {
    "h": 244.898,
    "s": 80.328,
    "l": 11.961
  },
  "oklch": {
    "l": 0.17685,
    "c": 0.09018,
    "h": 276
  },
  "luminance": 0.00471
}

Semantic roles & 50–950 ramp

primary

#0A0637

secondary

#707721

accent

#F731E7

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0637

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

Preview Lab → · Contrast checker → · Palette generator →