#2F3A88#2F3A88

#2F3A88 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.130 H 272.7°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#2F3A88
RGB	rgb(47, 58, 136)
HSL	hsl(233, 49%, 36%)
HSV	hsv(233, 65%, 53%)
CMYK	cmyk(65.4%, 57.4%, 0%, 46.7%)
CIE-LAB	lab(27.87, 21.78, -45.11)
CIE-LCH	lch(27.87, 50.09, 295.77°)
OKLab	oklab(38.66% 0.0062 -0.1296)
OKLCH	oklch(38.66% 0.13 272.7)
XYZ	xyz(7.1278, 5.4074, 23.9559)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3A88 #887D2F

analogous

#2F6688 #2F3A88 #502F88

triadic

#2F3A88 #882F3A #3A882F

tetradic

#2F3A88 #882F66 #887D2F #2F8850

square

#2F3A88 #882F66 #887D2F #2F8850

split-complementary

#2F3A88 #88502F #66882F

monochromatic

#10132D #1F275B #2F3A88 #3F4DB5 #6773CA

Accessibility & contrast

On white

10.09

#2F3A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2F3A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3A88

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3A88	#FFFFFF	#000000	##FFFFFF
##2F3A88	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468B

Deuteranopia (green-blind)

#003E86

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f3a88;
/* rgb */ color: rgb(47, 58, 136);
/* oklch */ color: oklch(38.7% 0.130 272.7);

Tailwind

colors: {
  custom: {
    50: '#7270ab',
    500: '#2f3a88',
    950: '#000000',
  },
}

SCSS

$custom: #2f3a88;
$custom-light: #7270ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3a88",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 136
  },
  "hsl": {
    "h": 232.584,
    "s": 48.634,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3866,
    "c": 0.12978,
    "h": 272.7
  },
  "luminance": 0.05408
}

Semantic roles & 50–950 ramp

primary

#2F3A88

secondary

#B1A861

accent

#C750D8

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3A88

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

Preview Lab → · Contrast checker → · Palette generator →