#2B3788#2B3788

#2B3788 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.135 H 271.9°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#2B3788
RGB	rgb(43, 55, 136)
HSL	hsl(232, 52%, 35%)
HSV	hsv(232, 68%, 53%)
CMYK	cmyk(68.4%, 59.6%, 0%, 46.7%)
CIE-LAB	lab(26.80, 23.14, -46.85)
CIE-LCH	lch(26.80, 52.25, 296.28°)
OKLab	oklab(37.8% 0.0045 -0.1349)
OKLCH	oklch(37.8% 0.135 271.9)
XYZ	xyz(6.8049, 5.0229, 23.8987)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3788 #887C2B

analogous

#2B6588 #2B3788 #4D2B88

triadic

#2B3788 #882B37 #37882B

tetradic

#2B3788 #882B65 #887C2B #2B884D

square

#2B3788 #882B65 #887C2B #2B884D

split-complementary

#2B3788 #884D2B #65882B

monochromatic

#0E112B #1C245A #2B3788 #3A4AB6 #616ECD

Accessibility & contrast

On white

10.47

#2B3788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2B3788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3788

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3788	#FFFFFF	#000000	##FFFFFF
##2B3788	1.00	10.47	2.00	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448B

Deuteranopia (green-blind)

#003B86

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3788;
/* rgb */ color: rgb(43, 55, 136);
/* oklch */ color: oklch(37.8% 0.135 271.9);

Tailwind

colors: {
  custom: {
    50: '#706dab',
    500: '#2b3788',
    950: '#000000',
  },
}

SCSS

$custom: #2b3788;
$custom-light: #706dab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3788",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 136
  },
  "hsl": {
    "h": 232.258,
    "s": 51.955,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37798,
    "c": 0.13496,
    "h": 271.9
  },
  "luminance": 0.05024
}

Semantic roles & 50–950 ramp

primary

#2B3788

secondary

#B3A85C

accent

#C94CDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3788

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

Preview Lab → · Contrast checker → · Palette generator →