#2F3A8A#2F3A8A

#2F3A8A is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.133 H 272.7°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#2F3A8A
RGB	rgb(47, 58, 138)
HSL	hsl(233, 49%, 36%)
HSV	hsv(233, 66%, 54%)
CMYK	cmyk(65.9%, 58%, 0%, 45.9%)
CIE-LAB	lab(28.02, 22.52, -46.10)
CIE-LCH	lch(28.02, 51.30, 296.03°)
OKLab	oklab(38.82% 0.0063 -0.1325)
OKLCH	oklch(38.82% 0.133 272.7)
XYZ	xyz(7.2713, 5.4648, 24.7115)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3A8A #8A7F2F

analogous

#2F688A #2F3A8A #522F8A

triadic

#2F3A8A #8A2F3A #3A8A2F

tetradic

#2F3A8A #8A2F68 #8A7F2F #2F8A52

square

#2F3A8A #8A2F68 #8A7F2F #2F8A52

split-complementary

#2F3A8A #8A522F #688A2F

monochromatic

#10142F #1F275C #2F3A8A #3F4DB8 #6874CC

Accessibility & contrast

On white

10.03

#2F3A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2F3A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3A8A

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3A8A	#FFFFFF	#000000	##FFFFFF
##2F3A8A	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f3a8a;
/* rgb */ color: rgb(47, 58, 138);
/* oklch */ color: oklch(38.8% 0.133 272.7);

Tailwind

colors: {
  custom: {
    50: '#7270ad',
    500: '#2f3a8a',
    950: '#000000',
  },
}

SCSS

$custom: #2f3a8a;
$custom-light: #7270ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3a8a",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 138
  },
  "hsl": {
    "h": 232.747,
    "s": 49.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38824,
    "c": 0.13269,
    "h": 272.7
  },
  "luminance": 0.05465
}

Semantic roles & 50–950 ramp

primary

#2F3A8A

secondary

#B3A962

accent

#C84FD9

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3A8A

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

Preview Lab → · Contrast checker → · Palette generator →