#333C88#333C88

#333C88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.126 H 274.0°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#333C88
RGB	rgb(51, 60, 136)
HSL	hsl(234, 45%, 37%)
HSV	hsv(234, 63%, 53%)
CMYK	cmyk(62.5%, 55.9%, 0%, 46.7%)
CIE-LAB	lab(28.68, 21.16, -43.79)
CIE-LCH	lch(28.68, 48.63, 295.80°)
OKLab	oklab(39.34% 0.0088 -0.1256)
OKLCH	oklch(39.34% 0.126 274)
XYZ	xyz(7.4236, 5.7125, 23.9992)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333C88 #887F33

analogous

#336788 #333C88 #553388

triadic

#333C88 #88333C #3C8833

tetradic

#333C88 #883367 #887F33 #338855

square

#333C88 #883367 #887F33 #338855

split-complementary

#333C88 #885533 #678833

monochromatic

#12152F #22285B #333C88 #4450B5 #6D77C8

Accessibility & contrast

On white

9.80

#333C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#333C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333C88

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333C88	#FFFFFF	#000000	##FFFFFF
##333C88	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07478B

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #333c88;
/* rgb */ color: rgb(51, 60, 136);
/* oklch */ color: oklch(39.3% 0.126 274.0);

Tailwind

colors: {
  custom: {
    50: '#7471ab',
    500: '#333c88',
    950: '#000000',
  },
}

SCSS

$custom: #333c88;
$custom-light: #7471ab;
$custom-dark: #000000;

JSON

{
  "hex": "#333c88",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 136
  },
  "hsl": {
    "h": 233.647,
    "s": 45.455,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39336,
    "c": 0.12591,
    "h": 274
  },
  "luminance": 0.05713
}

Semantic roles & 50–950 ramp

primary

#333C88

secondary

#B0A867

accent

#C753D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #333C88

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

Preview Lab → · Contrast checker → · Palette generator →