#2F33B8#2F33B8

#2F33B8 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.9% C 0.203 H 272.2°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#2F33B8
RGB	rgb(47, 51, 184)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 74%, 72%)
CMYK	cmyk(74.5%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(30.48, 43.37, -69.94)
CIE-LCH	lch(30.48, 82.30, 301.80°)
OKLab	oklab(41.89% 0.0078 -0.2024)
OKLCH	oklch(41.89% 0.203 272.2)
XYZ	xyz(11.0049, 6.4315, 45.9995)
Luminance	0.0643 (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

#2F33B8 #B8B42F

analogous

#2F78B8 #2F33B8 #6F2FB8

triadic

#2F33B8 #B82F33 #33B82F

tetradic

#2F33B8 #B82F78 #B8B42F #2FB86F

square

#2F33B8 #B82F78 #B8B42F #2FB86F

split-complementary

#2F33B8 #B86F2F #78B82F

monochromatic

#161857 #232587 #2F33B8 #5255D3 #8285DF

Accessibility & contrast

On white

9.18

#2F33B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2F33B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33B8

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33B8	#FFFFFF	#000000	##FFFFFF
##2F33B8	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0041B6

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f33b8;
/* rgb */ color: rgb(47, 51, 184);
/* oklch */ color: oklch(41.9% 0.203 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d6ccf',
    500: '#2f33b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f33b8;
$custom-light: #7d6ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33b8",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 238.248,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.41885,
    "c": 0.20254,
    "h": 272.2
  },
  "luminance": 0.06433
}

Semantic roles & 50–950 ramp

primary

#2F33B8

secondary

#C8C67B

accent

#DE45E2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F33B8

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

Preview Lab → · Contrast checker → · Palette generator →