#0A0435#0A0435

#0A0435 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.0% C 0.090 H 277.5°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#0A0435
RGB	rgb(10, 4, 53)
HSL	hsl(247, 86%, 11%)
HSV	hsv(247, 92%, 21%)
CMYK	cmyk(81.1%, 92.5%, 0%, 79.2%)
CIE-LAB	lab(3.69, 17.32, -29.06)
CIE-LCH	lch(3.69, 33.83, 300.80°)
OKLab	oklab(16.98% 0.0118 -0.0897)
OKLCH	oklch(16.98% 0.09 277.5)
XYZ	xyz(0.8110, 0.4083, 3.4035)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0435 #2F3504

analogous

#041635 #0A0435 #220435

triadic

#0A0435 #350A04 #04350A

tetradic

#0A0435 #350416 #2F3504 #043522

square

#0A0435 #350416 #2F3504 #043522

split-complementary

#0A0435 #352204 #163504

monochromatic

#05021C #05021C #0A0435 #15086E #1F0DA7

Accessibility & contrast

On white

19.42

#0A0435 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#0A0435 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0435

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0435	#FFFFFF	#000000	##FFFFFF
##0A0435	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F36

Deuteranopia (green-blind)

#000B34

Tritanopia (blue-blind)

#00121C

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #0a0435;
/* rgb */ color: rgb(10, 4, 53);
/* oklch */ color: oklch(17.0% 0.090 277.5);

Tailwind

colors: {
  custom: {
    50: '#4f486d',
    500: '#0a0435',
    950: '#000000',
  },
}

SCSS

$custom: #0a0435;
$custom-light: #4f486d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0435",
  "rgb": {
    "r": 10,
    "g": 4,
    "b": 53
  },
  "hsl": {
    "h": 247.347,
    "s": 85.965,
    "l": 11.176
  },
  "oklch": {
    "l": 0.1698,
    "c": 0.09045,
    "h": 277.5
  },
  "luminance": 0.00408
}

Semantic roles & 50–950 ramp

primary

#0A0435

secondary

#6C771E

accent

#FC2CE3

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0435

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

Preview Lab → · Contrast checker → · Palette generator →