#2B5188#2B5188

#2B5188 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.5% C 0.101 H 257.7°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#2B5188
RGB	rgb(43, 81, 136)
HSL	hsl(215, 52%, 35%)
HSV	hsv(215, 68%, 53%)
CMYK	cmyk(68.4%, 40.4%, 0%, 46.7%)
CIE-LAB	lab(34.35, 5.54, -34.72)
CIE-LCH	lch(34.35, 35.16, 279.07°)
OKLab	oklab(43.55% -0.0215 -0.0988)
OKLCH	oklch(43.55% 0.101 257.7)
XYZ	xyz(8.3810, 8.1752, 24.4241)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5188 #88622B

analogous

#2B7F88 #2B5188 #342B88

triadic

#2B5188 #882B51 #51882B

tetradic

#2B5188 #882B7F #88622B #2B8834

square

#2B5188 #882B7F #88622B #2B8834

split-complementary

#2B5188 #88342B #7F882B

monochromatic

#0E1A2B #1C355A #2B5188 #3A6DB6 #618DCD

Accessibility & contrast

On white

7.97

#2B5188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#2B5188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B5188

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5188	#FFFFFF	#000000	##FFFFFF
##2B5188	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38558A

Deuteranopia (green-blind)

#2A4D87

Tritanopia (blue-blind)

#005E66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2b5188;
/* rgb */ color: rgb(43, 81, 136);
/* oklch */ color: oklch(43.5% 0.101 257.7);

Tailwind

colors: {
  custom: {
    50: '#6f81ab',
    500: '#2b5188',
    950: '#000000',
  },
}

SCSS

$custom: #2b5188;
$custom-light: #6f81ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5188",
  "rgb": {
    "r": 43,
    "g": 81,
    "b": 136
  },
  "hsl": {
    "h": 215.484,
    "s": 51.955,
    "l": 35.098
  },
  "oklch": {
    "l": 0.43549,
    "c": 0.10113,
    "h": 257.7
  },
  "luminance": 0.08176
}

Semantic roles & 50–950 ramp

primary

#2B5188

secondary

#B38F5C

accent

#A14CDB

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #2B5188

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

Preview Lab → · Contrast checker → · Palette generator →