#2F43B2#2F43B2

#2F43B2 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.177 H 269.6°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#2F43B2
RGB	rgb(47, 67, 178)
HSL	hsl(231, 58%, 44%)
HSV	hsv(231, 74%, 70%)
CMYK	cmyk(73.6%, 62.4%, 0%, 30.2%)
CIE-LAB	lab(33.63, 31.30, -61.20)
CIE-LCH	lch(33.63, 68.74, 297.09°)
OKLab	oklab(44.01% -0.0011 -0.1768)
OKLCH	oklch(44.01% 0.177 269.6)
XYZ	xyz(11.2126, 7.8318, 43.0316)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43B2 #B29E2F

analogous

#2F85B2 #2F43B2 #5D2FB2

triadic

#2F43B2 #B22F43 #43B22F

tetradic

#2F43B2 #B22F85 #B29E2F #2FB25D

square

#2F43B2 #B22F85 #B29E2F #2FB25D

split-complementary

#2F43B2 #B25D2F #85B22F

monochromatic

#151F51 #223182 #2F43B2 #4E62D0 #7E8DDD

Accessibility & contrast

On white

8.18

#2F43B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2F43B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43B2

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43B2	#FFFFFF	#000000	##FFFFFF
##2F43B2	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0049B0

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f43b2;
/* rgb */ color: rgb(47, 67, 178);
/* oklch */ color: oklch(44.0% 0.177 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b77ca',
    500: '#2f43b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f43b2;
$custom-light: #7b77ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43b2",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 178
  },
  "hsl": {
    "h": 230.84,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.4401,
    "c": 0.1768,
    "h": 269.6
  },
  "luminance": 0.07833
}

Semantic roles & 50–950 ramp

primary

#2F43B2

secondary

#C6BA77

accent

#CA46E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F43B2

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

Preview Lab → · Contrast checker → · Palette generator →