#2B4583#2B4583

#2B4583 is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.4% C 0.109 H 264.8°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#2B4583
RGB	rgb(43, 69, 131)
HSL	hsl(222, 51%, 34%)
HSV	hsv(222, 67%, 51%)
CMYK	cmyk(67.2%, 47.3%, 0%, 48.6%)
CIE-LAB	lab(30.42, 11.67, -37.90)
CIE-LCH	lch(30.42, 39.66, 287.12°)
OKLab	oklab(40.42% -0.0098 -0.1084)
OKLCH	oklch(40.42% 0.109 264.8)
XYZ	xyz(7.2197, 6.4079, 22.3247)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4583 #83692B

analogous

#2B7183 #2B4583 #3D2B83

triadic

#2B4583 #832B45 #45832B

tetradic

#2B4583 #832B71 #83692B #2B833D

square

#2B4583 #832B71 #83692B #2B833D

split-complementary

#2B4583 #833D2B #71832B

monochromatic

#0D1427 #1C2D55 #2B4583 #3A5DB1 #5E7ECA

Accessibility & contrast

On white

9.20

#2B4583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2B4583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4583

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4583	#FFFFFF	#000000	##FFFFFF
##2B4583	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264C85

Deuteranopia (green-blind)

#174482

Tritanopia (blue-blind)

#00535D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2b4583;
/* rgb */ color: rgb(43, 69, 131);
/* oklch */ color: oklch(40.4% 0.109 264.8);

Tailwind

colors: {
  custom: {
    50: '#6e78a7',
    500: '#2b4583',
    950: '#000000',
  },
}

SCSS

$custom: #2b4583;
$custom-light: #6e78a7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4583",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 131
  },
  "hsl": {
    "h": 222.273,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40419,
    "c": 0.1088,
    "h": 264.8
  },
  "luminance": 0.06409
}

Semantic roles & 50–950 ramp

primary

#2B4583

secondary

#B0975A

accent

#B14EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B4583

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

Preview Lab → · Contrast checker → · Palette generator →