#2F43B3#2F43B3

#2F43B3 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.178 H 269.6°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#2F43B3
RGB	rgb(47, 67, 179)
HSL	hsl(231, 58%, 44%)
HSV	hsv(231, 74%, 70%)
CMYK	cmyk(73.7%, 62.6%, 0%, 29.8%)
CIE-LAB	lab(33.72, 31.66, -61.66)
CIE-LCH	lch(33.72, 69.31, 297.18°)
OKLab	oklab(44.1% -0.0011 -0.1781)
OKLCH	oklch(44.1% 0.178 269.6)
XYZ	xyz(11.3133, 7.8721, 43.5623)
Luminance	0.0787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43B3 #B39F2F

analogous

#2F85B3 #2F43B3 #5D2FB3

triadic

#2F43B3 #B32F43 #43B32F

tetradic

#2F43B3 #B32F85 #B39F2F #2FB35D

square

#2F43B3 #B32F85 #B39F2F #2FB35D

split-complementary

#2F43B3 #B35D2F #85B32F

monochromatic

#161F52 #223183 #2F43B3 #4F62D1 #7F8DDD

Accessibility & contrast

On white

8.16

#2F43B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2F43B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43B3

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43B3	#FFFFFF	#000000	##FFFFFF
##2F43B3	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f43b3;
/* rgb */ color: rgb(47, 67, 179);
/* oklch */ color: oklch(44.1% 0.178 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b77cb',
    500: '#2f43b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f43b3;
$custom-light: #7b77cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43b3",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 179
  },
  "hsl": {
    "h": 230.909,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.44099,
    "c": 0.17813,
    "h": 269.6
  },
  "luminance": 0.07873
}

Semantic roles & 50–950 ramp

primary

#2F43B3

secondary

#C6BA78

accent

#CA46E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F43B3

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

Preview Lab → · Contrast checker → · Palette generator →