#2F42B2#2F42B2

#2F42B2 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.8% C 0.178 H 269.9°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#2F42B2
RGB	rgb(47, 66, 178)
HSL	hsl(231, 58%, 44%)
HSV	hsv(231, 74%, 70%)
CMYK	cmyk(73.6%, 62.9%, 0%, 30.2%)
CIE-LAB	lab(33.38, 31.95, -61.61)
CIE-LCH	lch(33.38, 69.40, 297.41°)
OKLab	oklab(43.83% -0.0004 -0.178)
OKLCH	oklch(43.83% 0.178 269.9)
XYZ	xyz(11.1536, 7.7140, 43.0120)
Luminance	0.0771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42B2 #B29F2F

analogous

#2F84B2 #2F42B2 #5E2FB2

triadic

#2F42B2 #B22F42 #42B22F

tetradic

#2F42B2 #B22F84 #B29F2F #2FB25E

square

#2F42B2 #B22F84 #B29F2F #2FB25E

split-complementary

#2F42B2 #B25E2F #84B22F

monochromatic

#151E51 #223082 #2F42B2 #4E61D0 #7E8CDD

Accessibility & contrast

On white

8.26

#2F42B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#2F42B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42B2

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42B2	#FFFFFF	#000000	##FFFFFF
##2F42B2	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f42b2;
/* rgb */ color: rgb(47, 66, 178);
/* oklch */ color: oklch(43.8% 0.178 269.9);

Tailwind

colors: {
  custom: {
    50: '#7b76ca',
    500: '#2f42b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f42b2;
$custom-light: #7b76ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42b2",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 178
  },
  "hsl": {
    "h": 231.298,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43825,
    "c": 0.17801,
    "h": 269.9
  },
  "luminance": 0.07715
}

Semantic roles & 50–950 ramp

primary

#2F42B2

secondary

#C6BA77

accent

#CB46E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F42B2

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

Preview Lab → · Contrast checker → · Palette generator →