#2B4781#2B4781

#2B4781 is a dark, moderate blue. Relative luminance 0.066; OKLCH L 40.7% C 0.103 H 263.2°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#2B4781
RGB	rgb(43, 71, 129)
HSL	hsl(220, 50%, 34%)
HSV	hsv(220, 67%, 51%)
CMYK	cmyk(66.7%, 45%, 0%, 49.4%)
CIE-LAB	lab(30.89, 9.56, -35.91)
CIE-LCH	lch(30.89, 37.16, 284.90°)
OKLab	oklab(40.74% -0.0123 -0.1025)
OKLCH	oklch(40.74% 0.103 263.2)
XYZ	xyz(7.2106, 6.6044, 21.6594)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4781 #81652B

analogous

#2B7281 #2B4781 #3A2B81

triadic

#2B4781 #812B47 #47812B

tetradic

#2B4781 #812B72 #81652B #2B813A

square

#2B4781 #812B72 #81652B #2B813A

split-complementary

#2B4781 #813A2B #72812B

monochromatic

#0C1425 #1C2E53 #2B4781 #3A60AF #5D80C9

Accessibility & contrast

On white

9.05

#2B4781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2B4781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4781

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4781	#FFFFFF	#000000	##FFFFFF
##2B4781	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4D83

Deuteranopia (green-blind)

#1E4580

Tritanopia (blue-blind)

#00545D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b4781;
/* rgb */ color: rgb(43, 71, 129);
/* oklch */ color: oklch(40.7% 0.103 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e79a6',
    500: '#2b4781',
    950: '#000000',
  },
}

SCSS

$custom: #2b4781;
$custom-light: #6e79a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4781",
  "rgb": {
    "r": 43,
    "g": 71,
    "b": 129
  },
  "hsl": {
    "h": 220.465,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40738,
    "c": 0.1032,
    "h": 263.2
  },
  "luminance": 0.06605
}

Semantic roles & 50–950 ramp

primary

#2B4781

secondary

#AF9359

accent

#AC4EDA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #2B4781

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

Preview Lab → · Contrast checker → · Palette generator →