#2B277D#2B277D

#2B277D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.140 H 277.8°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#2B277D
RGB	rgb(43, 39, 125)
HSL	hsl(243, 52%, 32%)
HSV	hsv(243, 69%, 49%)
CMYK	cmyk(65.6%, 68.8%, 0%, 51%)
CIE-LAB	lab(21.74, 29.79, -48.19)
CIE-LCH	lch(21.74, 56.65, 301.72°)
OKLab	oklab(33.78% 0.0192 -0.1389)
OKLCH	oklch(33.78% 0.14 277.8)
XYZ	xyz(5.4223, 3.4449, 19.7772)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B277D #797D27

analogous

#274E7D #2B277D #56277D

triadic

#2B277D #7D2B27 #277D2B

tetradic

#2B277D #7D274E #797D27 #277D56

square

#2B277D #7D274E #797D27 #277D56

split-complementary

#2B277D #7D5627 #4E7D27

monochromatic

#0B0A20 #1B184E #2B277D #3B36AC #5A55CA

Accessibility & contrast

On white

12.43

#2B277D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#2B277D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B277D

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B277D	#FFFFFF	#000000	##FFFFFF
##2B277D	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003880

Deuteranopia (green-blind)

#00317B

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #2b277d;
/* rgb */ color: rgb(43, 39, 125);
/* oklch */ color: oklch(33.8% 0.140 277.8);

Tailwind

colors: {
  custom: {
    50: '#6f62a3',
    500: '#2b277d',
    950: '#000000',
  },
}

SCSS

$custom: #2b277d;
$custom-light: #6f62a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b277d",
  "rgb": {
    "r": 43,
    "g": 39,
    "b": 125
  },
  "hsl": {
    "h": 242.791,
    "s": 52.439,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33784,
    "c": 0.14025,
    "h": 277.8
  },
  "luminance": 0.03445
}

Semantic roles & 50–950 ramp

primary

#2B277D

secondary

#AAAF51

accent

#DC4CD5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #2B277D

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

Preview Lab → · Contrast checker → · Palette generator →