#0B2251#0B2251

#0B2251 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.6% C 0.091 H 262.4°. Best body text is #FFFFFF at 15.42:1 contrast (WCAG AA passes).

Color values

HEX	#0B2251
RGB	rgb(11, 34, 81)
HSL	hsl(220, 76%, 18%)
HSV	hsv(220, 86%, 32%)
CMYK	cmyk(86.4%, 58%, 0%, 68.2%)
CIE-LAB	lab(14.45, 11.12, -31.32)
CIE-LCH	lch(14.45, 33.24, 289.55°)
OKLab	oklab(26.64% -0.012 -0.0903)
OKLCH	oklch(26.64% 0.091 262.4)
XYZ	xyz(2.1947, 1.8090, 8.0165)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2251 #513A0B

analogous

#0B4551 #0B2251 #170B51

triadic

#0B2251 #510B22 #22510B

tetradic

#0B2251 #510B45 #513A0B #0B5117

square

#0B2251 #510B45 #513A0B #0B5117

split-complementary

#0B2251 #51170B #45510B

monochromatic

#040B1B #040B1B #0B2251 #123987 #1A4FBD

Accessibility & contrast

On white

15.42

#0B2251 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#0B2251 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2251

15.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2251	#FFFFFF	#000000	##FFFFFF
##0B2251	1.00	15.42	1.36	15.42
#FFFFFF	15.42	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#022853

Deuteranopia (green-blind)

#002150

Tritanopia (blue-blind)

#002D35

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0b2251;
/* rgb */ color: rgb(11, 34, 81);
/* oklch */ color: oklch(26.6% 0.091 262.4);

Tailwind

colors: {
  custom: {
    50: '#575c82',
    500: '#0b2251',
    950: '#000000',
  },
}

SCSS

$custom: #0b2251;
$custom-light: #575c82;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2251",
  "rgb": {
    "r": 11,
    "g": 34,
    "b": 81
  },
  "hsl": {
    "h": 220.286,
    "s": 76.087,
    "l": 18.039
  },
  "oklch": {
    "l": 0.26636,
    "c": 0.09108,
    "h": 262.4
  },
  "luminance": 0.01809
}

Semantic roles & 50–950 ramp

primary

#0B2251

secondary

#8D6D2B

accent

#B435F3

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04040A

muted

#79797C

Preview Lab

Preview with #0B2251

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

Preview Lab → · Contrast checker → · Palette generator →