#2B4183#2B4183

#2B4183 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.5% C 0.114 H 267.2°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2B4183
RGB	rgb(43, 65, 131)
HSL	hsl(225, 51%, 34%)
HSV	hsv(225, 67%, 51%)
CMYK	cmyk(67.2%, 50.4%, 0%, 48.6%)
CIE-LAB	lab(29.24, 14.40, -39.79)
CIE-LCH	lch(29.24, 42.32, 289.89°)
OKLab	oklab(39.52% -0.0056 -0.114)
OKLCH	oklch(39.52% 0.114 267.2)
XYZ	xyz(6.9819, 5.9322, 22.2454)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4183 #836D2B

analogous

#2B6D83 #2B4183 #412B83

triadic

#2B4183 #832B41 #41832B

tetradic

#2B4183 #832B6D #836D2B #2B8341

square

#2B4183 #832B6D #836D2B #2B8341

split-complementary

#2B4183 #83412B #6D832B

monochromatic

#0D1327 #1C2A55 #2B4183 #3A58B1 #5E79CA

Accessibility & contrast

On white

9.60

#2B4183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B4183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4183

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4183	#FFFFFF	#000000	##FFFFFF
##2B4183	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4985

Deuteranopia (green-blind)

#094182

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b4183;
/* rgb */ color: rgb(43, 65, 131);
/* oklch */ color: oklch(39.5% 0.114 267.2);

Tailwind

colors: {
  custom: {
    50: '#6f75a7',
    500: '#2b4183',
    950: '#000000',
  },
}

SCSS

$custom: #2b4183;
$custom-light: #6f75a7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4183",
  "rgb": {
    "r": 43,
    "g": 65,
    "b": 131
  },
  "hsl": {
    "h": 225,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39518,
    "c": 0.11412,
    "h": 267.2
  },
  "luminance": 0.05933
}

Semantic roles & 50–950 ramp

primary

#2B4183

secondary

#B09B5A

accent

#B74EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B4183

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

Preview Lab → · Contrast checker → · Palette generator →