#2B4D81#2B4D81

#2B4D81 is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.1% C 0.096 H 258.7°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#2B4D81
RGB	rgb(43, 77, 129)
HSL	hsl(216, 50%, 34%)
HSV	hsv(216, 67%, 51%)
CMYK	cmyk(66.7%, 40.3%, 0%, 49.4%)
CIE-LAB	lab(32.71, 5.54, -33.00)
CIE-LCH	lch(32.71, 33.46, 279.54°)
OKLab	oklab(42.15% -0.0188 -0.0939)
OKLCH	oklch(42.15% 0.096 258.7)
XYZ	xyz(7.6112, 7.4056, 21.7929)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4D81 #815F2B

analogous

#2B7881 #2B4D81 #342B81

triadic

#2B4D81 #812B4D #4D812B

tetradic

#2B4D81 #812B78 #815F2B #2B8134

square

#2B4D81 #812B78 #815F2B #2B8134

split-complementary

#2B4D81 #81342B #78812B

monochromatic

#0C1625 #1C3253 #2B4D81 #3A68AF #5D88C9

Accessibility & contrast

On white

8.46

#2B4D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2B4D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4D81

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4D81	#FFFFFF	#000000	##FFFFFF
##2B4D81	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365183

Deuteranopia (green-blind)

#2A4980

Tritanopia (blue-blind)

#005960

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2b4d81;
/* rgb */ color: rgb(43, 77, 129);
/* oklch */ color: oklch(42.1% 0.096 258.7);

Tailwind

colors: {
  custom: {
    50: '#6e7ea6',
    500: '#2b4d81',
    950: '#000000',
  },
}

SCSS

$custom: #2b4d81;
$custom-light: #6e7ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4d81",
  "rgb": {
    "r": 43,
    "g": 77,
    "b": 129
  },
  "hsl": {
    "h": 216.279,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42149,
    "c": 0.09573,
    "h": 258.7
  },
  "luminance": 0.07406
}

Semantic roles & 50–950 ramp

primary

#2B4D81

secondary

#AF8D59

accent

#A24EDA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #2B4D81

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

Preview Lab → · Contrast checker → · Palette generator →