#2F43B5#2F43B5

#2F43B5 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.181 H 269.6°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#2F43B5
RGB	rgb(47, 67, 181)
HSL	hsl(231, 59%, 45%)
HSV	hsv(231, 74%, 71%)
CMYK	cmyk(74%, 63%, 0%, 29%)
CIE-LAB	lab(33.89, 32.40, -62.56)
CIE-LCH	lch(33.89, 70.45, 297.38°)
OKLab	oklab(44.28% -0.0012 -0.1808)
OKLCH	oklch(44.28% 0.181 269.6)
XYZ	xyz(11.5171, 7.9536, 44.6353)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43B5 #B5A12F

analogous

#2F86B5 #2F43B5 #5E2FB5

triadic

#2F43B5 #B52F43 #43B52F

tetradic

#2F43B5 #B52F86 #B5A12F #2FB55E

square

#2F43B5 #B52F86 #B5A12F #2FB55E

split-complementary

#2F43B5 #B55E2F #86B52F

monochromatic

#161F54 #223184 #2F43B5 #5063D1 #808EDE

Accessibility & contrast

On white

8.10

#2F43B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#2F43B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43B5

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43B5	#FFFFFF	#000000	##FFFFFF
##2F43B5	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004AB3

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2f43b5;
/* rgb */ color: rgb(47, 67, 181);
/* oklch */ color: oklch(44.3% 0.181 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b77cc',
    500: '#2f43b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f43b5;
$custom-light: #7b77cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43b5",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 181
  },
  "hsl": {
    "h": 231.045,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44278,
    "c": 0.18078,
    "h": 269.6
  },
  "luminance": 0.07955
}

Semantic roles & 50–950 ramp

primary

#2F43B5

secondary

#C7BB79

accent

#CB46E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F43B5

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

Preview Lab → · Contrast checker → · Palette generator →