#2B3F8A#2B3F8A

#2B3F8A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.6% C 0.127 H 268.7°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F8A
RGB	rgb(43, 63, 138)
HSL	hsl(227, 52%, 35%)
HSV	hsv(227, 69%, 54%)
CMYK	cmyk(68.8%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(29.17, 18.43, -44.25)
CIE-LCH	lch(29.17, 47.94, 292.61°)
OKLab	oklab(39.62% -0.0028 -0.1271)
OKLCH	oklch(39.62% 0.127 268.7)
XYZ	xyz(7.3596, 5.9029, 24.7913)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F8A #8A762B

analogous

#2B6E8A #2B3F8A #462B8A

triadic

#2B3F8A #8A2B3F #3F8A2B

tetradic

#2B3F8A #8A2B6E #8A762B #2B8A46

square

#2B3F8A #8A2B6E #8A762B #2B8A46

split-complementary

#2B3F8A #8A462B #6E8A2B

monochromatic

#0E142D #1C2A5B #2B3F8A #3A54B9 #6178CE

Accessibility & contrast

On white

9.63

#2B3F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2B3F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F8A

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F8A	#FFFFFF	#000000	##FFFFFF
##2B3F8A	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D498D

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b3f8a;
/* rgb */ color: rgb(43, 63, 138);
/* oklch */ color: oklch(39.6% 0.127 268.7);

Tailwind

colors: {
  custom: {
    50: '#7073ad',
    500: '#2b3f8a',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f8a;
$custom-light: #7073ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f8a",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 227.368,
    "s": 52.486,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39621,
    "c": 0.12717,
    "h": 268.7
  },
  "luminance": 0.05904
}

Semantic roles & 50–950 ramp

primary

#2B3F8A

secondary

#B4A25D

accent

#BE4CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3F8A

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

Preview Lab → · Contrast checker → · Palette generator →