#2B3E81#2B3E81

#2B3E81 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.7% C 0.115 H 268.6°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#2B3E81
RGB	rgb(43, 62, 129)
HSL	hsl(227, 50%, 34%)
HSV	hsv(227, 67%, 51%)
CMYK	cmyk(66.7%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(28.23, 15.70, -40.17)
CIE-LCH	lch(28.23, 43.13, 291.34°)
OKLab	oklab(38.71% -0.0027 -0.1151)
OKLCH	oklch(38.71% 0.115 268.6)
XYZ	xyz(6.6800, 5.5432, 21.4825)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3E81 #816E2B

analogous

#2B6981 #2B3E81 #432B81

triadic

#2B3E81 #812B3E #3E812B

tetradic

#2B3E81 #812B69 #816E2B #2B8143

square

#2B3E81 #812B69 #816E2B #2B8143

split-complementary

#2B3E81 #81432B #69812B

monochromatic

#0C1225 #1C2853 #2B3E81 #3A54AF #5D75C9

Accessibility & contrast

On white

9.96

#2B3E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2B3E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3E81

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3E81	#FFFFFF	#000000	##FFFFFF
##2B3E81	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184783

Deuteranopia (green-blind)

#013F80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b3e81;
/* rgb */ color: rgb(43, 62, 129);
/* oklch */ color: oklch(38.7% 0.115 268.6);

Tailwind

colors: {
  custom: {
    50: '#6e72a6',
    500: '#2b3e81',
    950: '#000000',
  },
}

SCSS

$custom: #2b3e81;
$custom-light: #6e72a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3e81",
  "rgb": {
    "r": 43,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 226.744,
    "s": 50,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38705,
    "c": 0.11518,
    "h": 268.6
  },
  "luminance": 0.05544
}

Semantic roles & 50–950 ramp

primary

#2B3E81

secondary

#AF9C59

accent

#BB4EDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B3E81

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

Preview Lab → · Contrast checker → · Palette generator →