#2F33B5#2F33B5

#2F33B5 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.6% C 0.199 H 272.4°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2F33B5
RGB	rgb(47, 51, 181)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 74%, 71%)
CMYK	cmyk(74%, 71.8%, 0%, 29%)
CIE-LAB	lab(30.17, 42.35, -68.66)
CIE-LCH	lch(30.17, 80.67, 301.67°)
OKLab	oklab(41.58% 0.0083 -0.1986)
OKLCH	oklch(41.58% 0.199 272.4)
XYZ	xyz(10.6938, 6.3071, 44.3609)
Luminance	0.0631 (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

#2F33B5 #B5B12F

analogous

#2F76B5 #2F33B5 #6E2FB5

triadic

#2F33B5 #B52F33 #33B52F

tetradic

#2F33B5 #B52F76 #B5B12F #2FB56E

square

#2F33B5 #B52F76 #B5B12F #2FB56E

split-complementary

#2F33B5 #B56E2F #76B52F

monochromatic

#161854 #222584 #2F33B5 #5054D1 #8083DE

Accessibility & contrast

On white

9.29

#2F33B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2F33B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33B5

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33B5	#FFFFFF	#000000	##FFFFFF
##2F33B5	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB9

Deuteranopia (green-blind)

#0041B3

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f33b5;
/* rgb */ color: rgb(47, 51, 181);
/* oklch */ color: oklch(41.6% 0.199 272.4);

Tailwind

colors: {
  custom: {
    50: '#7d6ccc',
    500: '#2f33b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f33b5;
$custom-light: #7d6ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33b5",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 181
  },
  "hsl": {
    "h": 238.209,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41579,
    "c": 0.19882,
    "h": 272.4
  },
  "luminance": 0.06308
}

Semantic roles & 50–950 ramp

primary

#2F33B5

secondary

#C7C579

accent

#DD46E2

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F33B5

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

Preview Lab → · Contrast checker → · Palette generator →