#09023B#09023B

#09023B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.3% C 0.102 H 275.2°. Best body text is #FFFFFF at 19.38:1 contrast (WCAG AA passes).

Color values

HEX	#09023B
RGB	rgb(9, 2, 59)
HSL	hsl(247, 93%, 12%)
HSV	hsv(247, 97%, 23%)
CMYK	cmyk(84.7%, 96.6%, 0%, 76.9%)
CIE-LAB	lab(3.77, 21.48, -33.32)
CIE-LCH	lch(3.77, 39.65, 302.81°)
OKLab	oklab(17.3% 0.0092 -0.1017)
OKLCH	oklch(17.3% 0.102 275.2)
XYZ	xyz(0.9235, 0.4172, 4.1687)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09023B #343B02

analogous

#02183B #09023B #26023B

triadic

#09023B #3B0902 #023B09

tetradic

#09023B #3B0218 #343B02 #023B26

square

#09023B #3B0218 #343B02 #023B26

split-complementary

#09023B #3B2602 #183B02

monochromatic

#05011E #05011E #09023B #120476 #1B06B1

Accessibility & contrast

On white

19.38

#09023B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#09023B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09023B

19.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09023B	#FFFFFF	#000000	##FFFFFF
##09023B	1.00	19.38	1.08	19.38
#FFFFFF	19.38	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00103D

Deuteranopia (green-blind)

#000B3A

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #09023b;
/* rgb */ color: rgb(9, 2, 59);
/* oklch */ color: oklch(17.3% 0.102 275.2);

Tailwind

colors: {
  custom: {
    50: '#514672',
    500: '#09023b',
    950: '#000000',
  },
}

SCSS

$custom: #09023b;
$custom-light: #514672;
$custom-dark: #000000;

JSON

{
  "hex": "#09023b",
  "rgb": {
    "r": 9,
    "g": 2,
    "b": 59
  },
  "hsl": {
    "h": 247.368,
    "s": 93.443,
    "l": 11.961
  },
  "oklch": {
    "l": 0.17299,
    "c": 0.10213,
    "h": 275.2
  },
  "luminance": 0.00417
}

Semantic roles & 50–950 ramp

primary

#09023B

secondary

#727E1A

accent

#FF29E5

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#030008

muted

#78777B

Preview Lab

Preview with #09023B

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

Preview Lab → · Contrast checker → · Palette generator →