#2F309F#2F309F

#2F309F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.174 H 274.3°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#2F309F
RGB	rgb(47, 48, 159)
HSL	hsl(239, 54%, 40%)
HSV	hsv(239, 70%, 62%)
CMYK	cmyk(70.4%, 69.8%, 0%, 37.6%)
CIE-LAB	lab(27.35, 36.59, -60.07)
CIE-LCH	lch(27.35, 70.34, 301.35°)
OKLab	oklab(38.9% 0.0132 -0.1736)
OKLCH	oklch(38.9% 0.174 274.3)
XYZ	xyz(8.4852, 5.2206, 33.3547)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F309F #9F9E2F

analogous

#2F689F #2F309F #662F9F

triadic

#2F309F #9F2F30 #309F2F

tetradic

#2F309F #9F2F68 #9F9E2F #2F9F66

square

#2F309F #9F2F68 #9F9E2F #2F9F66

split-complementary

#2F309F #9F662F #689F2F

monochromatic

#131341 #212270 #2F309F #4445C8 #7374D6

Accessibility & contrast

On white

10.27

#2F309F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2F309F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F309F

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F309F	#FFFFFF	#000000	##FFFFFF
##2F309F	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A2

Deuteranopia (green-blind)

#003B9D

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f309f;
/* rgb */ color: rgb(47, 48, 159);
/* oklch */ color: oklch(38.9% 0.174 274.3);

Tailwind

colors: {
  custom: {
    50: '#7869bc',
    500: '#2f309f',
    950: '#000000',
  },
}

SCSS

$custom: #2f309f;
$custom-light: #7869bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f309f",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 159
  },
  "hsl": {
    "h": 239.464,
    "s": 54.369,
    "l": 40.392
  },
  "oklch": {
    "l": 0.389,
    "c": 0.1741,
    "h": 274.3
  },
  "luminance": 0.05221
}

Semantic roles & 50–950 ramp

primary

#2F309F

secondary

#BDBD6D

accent

#DC4ADE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2F309F

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

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