#2F33B3#2F33B3

#2F33B3 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.4% C 0.196 H 272.5°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#2F33B3
RGB	rgb(47, 51, 179)
HSL	hsl(238, 58%, 44%)
HSV	hsv(238, 74%, 70%)
CMYK	cmyk(73.7%, 71.5%, 0%, 29.8%)
CIE-LAB	lab(29.97, 41.67, -67.79)
CIE-LCH	lch(29.97, 79.58, 301.58°)
OKLab	oklab(41.38% 0.0086 -0.1961)
OKLCH	oklch(41.38% 0.196 272.5)
XYZ	xyz(10.4901, 6.2256, 43.2879)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F33B3 #B3AF2F

analogous

#2F75B3 #2F33B3 #6D2FB3

triadic

#2F33B3 #B32F33 #33B32F

tetradic

#2F33B3 #B32F75 #B3AF2F #2FB36D

square

#2F33B3 #B32F75 #B3AF2F #2FB36D

split-complementary

#2F33B3 #B36D2F #75B32F

monochromatic

#161752 #222583 #2F33B3 #4F52D1 #7F82DD

Accessibility & contrast

On white

9.35

#2F33B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2F33B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33B3

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33B3	#FFFFFF	#000000	##FFFFFF
##2F33B3	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB7

Deuteranopia (green-blind)

#0040B1

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f33b3;
/* rgb */ color: rgb(47, 51, 179);
/* oklch */ color: oklch(41.4% 0.196 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c6ccb',
    500: '#2f33b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f33b3;
$custom-light: #7c6ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33b3",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 179
  },
  "hsl": {
    "h": 238.182,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41376,
    "c": 0.19634,
    "h": 272.5
  },
  "luminance": 0.06227
}

Semantic roles & 50–950 ramp

primary

#2F33B3

secondary

#C6C478

accent

#DD46E2

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F33B3

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

Preview Lab → · Contrast checker → · Palette generator →