#2B4181#2B4181

#2B4181 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.4% C 0.111 H 267.0°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#2B4181
RGB	rgb(43, 65, 129)
HSL	hsl(225, 50%, 34%)
HSV	hsv(225, 67%, 51%)
CMYK	cmyk(66.7%, 49.6%, 0%, 49.4%)
CIE-LAB	lab(29.10, 13.64, -38.77)
CIE-LCH	lch(29.10, 41.10, 289.38°)
OKLab	oklab(39.37% -0.0059 -0.111)
OKLCH	oklch(39.37% 0.111 267)
XYZ	xyz(6.8476, 5.8785, 21.5384)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4181 #816B2B

analogous

#2B6C81 #2B4181 #402B81

triadic

#2B4181 #812B41 #41812B

tetradic

#2B4181 #812B6C #816B2B #2B8140

square

#2B4181 #812B6C #816B2B #2B8140

split-complementary

#2B4181 #81402B #6C812B

monochromatic

#0C1325 #1C2A53 #2B4181 #3A58AF #5D79C9

Accessibility & contrast

On white

9.65

#2B4181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2B4181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4181

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4181	#FFFFFF	#000000	##FFFFFF
##2B4181	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204983

Deuteranopia (green-blind)

#0E4180

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b4181;
/* rgb */ color: rgb(43, 65, 129);
/* oklch */ color: oklch(39.4% 0.111 267.0);

Tailwind

colors: {
  custom: {
    50: '#6e75a6',
    500: '#2b4181',
    950: '#000000',
  },
}

SCSS

$custom: #2b4181;
$custom-light: #6e75a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4181",
  "rgb": {
    "r": 43,
    "g": 65,
    "b": 129
  },
  "hsl": {
    "h": 224.651,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3937,
    "c": 0.11113,
    "h": 267
  },
  "luminance": 0.05879
}

Semantic roles & 50–950 ramp

primary

#2B4181

secondary

#AF9959

accent

#B64EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B4181

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

Preview Lab → · Contrast checker → · Palette generator →