#2B277B#2B277B

#2B277B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.137 H 278.1°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#2B277B
RGB	rgb(43, 39, 123)
HSL	hsl(243, 52%, 32%)
HSV	hsv(243, 68%, 48%)
CMYK	cmyk(65%, 68.3%, 0%, 51.8%)
CIE-LAB	lab(21.56, 29.08, -47.22)
CIE-LCH	lch(21.56, 55.46, 301.63°)
OKLab	oklab(33.59% 0.0194 -0.1361)
OKLCH	oklch(33.59% 0.137 278.1)
XYZ	xyz(5.2958, 3.3943, 19.1111)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B277B #777B27

analogous

#274D7B #2B277B #55277B

triadic

#2B277B #7B2B27 #277B2B

tetradic

#2B277B #7B274D #777B27 #277B55

square

#2B277B #7B274D #777B27 #277B55

split-complementary

#2B277B #7B5527 #4D7B27

monochromatic

#0B0A1E #1B184D #2B277B #3B36A9 #5954C9

Accessibility & contrast

On white

12.51

#2B277B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#2B277B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B277B

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B277B	#FFFFFF	#000000	##FFFFFF
##2B277B	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #2b277b;
/* rgb */ color: rgb(43, 39, 123);
/* oklch */ color: oklch(33.6% 0.137 278.1);

Tailwind

colors: {
  custom: {
    50: '#6f61a2',
    500: '#2b277b',
    950: '#000000',
  },
}

SCSS

$custom: #2b277b;
$custom-light: #6f61a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b277b",
  "rgb": {
    "r": 43,
    "g": 39,
    "b": 123
  },
  "hsl": {
    "h": 242.857,
    "s": 51.852,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33592,
    "c": 0.13748,
    "h": 278.1
  },
  "luminance": 0.03395
}

Semantic roles & 50–950 ramp

primary

#2B277B

secondary

#A9AD51

accent

#DB4CD5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #2B277B

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

Preview Lab → · Contrast checker → · Palette generator →