#0B234B#0B234B

#0B234B is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.4% C 0.080 H 260.1°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#0B234B
RGB	rgb(11, 35, 75)
HSL	hsl(218, 74%, 17%)
HSV	hsv(218, 85%, 29%)
CMYK	cmyk(85.3%, 53.3%, 0%, 70.6%)
CIE-LAB	lab(14.29, 7.66, -27.48)
CIE-LCH	lch(14.29, 28.53, 285.58°)
OKLab	oklab(26.36% -0.0138 -0.079)
OKLCH	oklch(26.36% 0.08 260.1)
XYZ	xyz(2.0086, 1.7810, 6.8931)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B234B #4B330B

analogous

#0B434B #0B234B #130B4B

triadic

#0B234B #4B0B23 #234B0B

tetradic

#0B234B #4B0B43 #4B330B #0B4B13

square

#0B234B #4B0B43 #4B330B #0B4B13

split-complementary

#0B234B #4B130B #434B0B

monochromatic

#040C1B #040C1B #0B234B #133C80 #1B55B6

Accessibility & contrast

On white

15.48

#0B234B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#0B234B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B234B

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B234B	#FFFFFF	#000000	##FFFFFF
##0B234B	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C274C

Deuteranopia (green-blind)

#00214A

Tritanopia (blue-blind)

#002D33

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #0b234b;
/* rgb */ color: rgb(11, 35, 75);
/* oklch */ color: oklch(26.4% 0.080 260.1);

Tailwind

colors: {
  custom: {
    50: '#555d7d',
    500: '#0b234b',
    950: '#000000',
  },
}

SCSS

$custom: #0b234b;
$custom-light: #555d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b234b",
  "rgb": {
    "r": 11,
    "g": 35,
    "b": 75
  },
  "hsl": {
    "h": 217.5,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.26361,
    "c": 0.08016,
    "h": 260.1
  },
  "luminance": 0.01781
}

Semantic roles & 50–950 ramp

primary

#0B234B

secondary

#87642B

accent

#AB37F1

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03040A

muted

#78797C

Preview Lab

Preview with #0B234B

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

Preview Lab → · Contrast checker → · Palette generator →