#3331B9#3331B9

#3331B9 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.9% C 0.205 H 273.7°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#3331B9
RGB	rgb(51, 49, 185)
HSL	hsl(241, 58%, 46%)
HSV	hsv(241, 74%, 73%)
CMYK	cmyk(72.4%, 73.5%, 0%, 27.5%)
CIE-LAB	lab(30.41, 45.24, -70.64)
CIE-LCH	lch(30.41, 83.88, 302.63°)
OKLab	oklab(41.93% 0.0133 -0.2043)
OKLCH	oklch(41.93% 0.205 273.7)
XYZ	xyz(11.2176, 6.4021, 46.5341)
Luminance	0.0640 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.72

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3331B9 #B7B931

analogous

#3173B9 #3331B9 #7731B9

triadic

#3331B9 #B93331 #31B933

tetradic

#3331B9 #B93173 #B7B931 #31B977

square

#3331B9 #B93173 #B7B931 #31B977

split-complementary

#3331B9 #B97731 #73B931

monochromatic

#181758 #262489 #3331B9 #5755D2 #8786DF

Accessibility & contrast

On white

9.21

#3331B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3331B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331B9

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331B9	#FFFFFF	#000000	##FFFFFF
##3331B9	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBD

Deuteranopia (green-blind)

#0041B7

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3331b9;
/* rgb */ color: rgb(51, 49, 185);
/* oklch */ color: oklch(41.9% 0.205 273.7);

Tailwind

colors: {
  custom: {
    50: '#7f6bcf',
    500: '#3331b9',
    950: '#000000',
  },
}

SCSS

$custom: #3331b9;
$custom-light: #7f6bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3331b9",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 185
  },
  "hsl": {
    "h": 240.882,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.41929,
    "c": 0.20477,
    "h": 273.7
  },
  "luminance": 0.06403
}

Semantic roles & 50–950 ramp

primary

#3331B9

secondary

#C7C87D

accent

#E146DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3331B9

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

Preview Lab → · Contrast checker → · Palette generator →