#2F33B9#2F33B9

#2F33B9 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.0% C 0.204 H 272.2°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#2F33B9
RGB	rgb(47, 51, 185)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 75%, 73%)
CMYK	cmyk(74.6%, 72.4%, 0%, 27.5%)
CIE-LAB	lab(30.58, 43.71, -70.36)
CIE-LCH	lch(30.58, 82.83, 301.85°)
OKLab	oklab(41.99% 0.0077 -0.2036)
OKLCH	oklch(41.99% 0.204 272.2)
XYZ	xyz(11.1101, 6.4736, 46.5535)
Luminance	0.0648 (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

#2F33B9 #B9B52F

analogous

#2F78B9 #2F33B9 #702FB9

triadic

#2F33B9 #B92F33 #33B92F

tetradic

#2F33B9 #B92F78 #B9B52F #2FB970

square

#2F33B9 #B92F78 #B9B52F #2FB970

split-complementary

#2F33B9 #B9702F #78B92F

monochromatic

#161857 #232688 #2F33B9 #5256D3 #8386DF

Accessibility & contrast

On white

9.15

#2F33B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2F33B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33B9

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33B9	#FFFFFF	#000000	##FFFFFF
##2F33B9	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBD

Deuteranopia (green-blind)

#0041B7

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f33b9;
/* rgb */ color: rgb(47, 51, 185);
/* oklch */ color: oklch(42.0% 0.204 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e6ccf',
    500: '#2f33b9',
    950: '#000000',
  },
}

SCSS

$custom: #2f33b9;
$custom-light: #7e6ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33b9",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 185
  },
  "hsl": {
    "h": 238.261,
    "s": 59.483,
    "l": 45.49
  },
  "oklch": {
    "l": 0.41988,
    "c": 0.20378,
    "h": 272.2
  },
  "luminance": 0.06475
}

Semantic roles & 50–950 ramp

primary

#2F33B9

secondary

#C9C67B

accent

#DE45E3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #2F33B9

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

Preview Lab → · Contrast checker → · Palette generator →