#2F3F8A#2F3F8A

#2F3F8A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.126 H 270.6°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F8A
RGB	rgb(47, 63, 138)
HSL	hsl(229, 49%, 36%)
HSV	hsv(229, 66%, 54%)
CMYK	cmyk(65.9%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(29.40, 19.12, -43.87)
CIE-LCH	lch(29.40, 47.86, 293.55°)
OKLab	oklab(39.86% 0.0014 -0.1259)
OKLCH	oklch(39.86% 0.126 270.6)
XYZ	xyz(7.5357, 5.9937, 24.7996)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F8A #8A7A2F

analogous

#2F6D8A #2F3F8A #4D2F8A

triadic

#2F3F8A #8A2F3F #3F8A2F

tetradic

#2F3F8A #8A2F6D #8A7A2F #2F8A4D

square

#2F3F8A #8A2F6D #8A7A2F #2F8A4D

split-complementary

#2F3F8A #8A4D2F #6D8A2F

monochromatic

#10152F #1F2A5C #2F3F8A #3F54B8 #6879CC

Accessibility & contrast

On white

9.55

#2F3F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2F3F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F8A

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F8A	#FFFFFF	#000000	##FFFFFF
##2F3F8A	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4A8D

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f3f8a;
/* rgb */ color: rgb(47, 63, 138);
/* oklch */ color: oklch(39.9% 0.126 270.6);

Tailwind

colors: {
  custom: {
    50: '#7273ad',
    500: '#2f3f8a',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f8a;
$custom-light: #7273ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f8a",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 229.451,
    "s": 49.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39857,
    "c": 0.12593,
    "h": 270.6
  },
  "luminance": 0.05994
}

Semantic roles & 50–950 ramp

primary

#2F3F8A

secondary

#B3A462

accent

#C14FD9

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #2F3F8A

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

Preview Lab → · Contrast checker → · Palette generator →