#333C87#333C87

#333C87 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.124 H 274.0°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#333C87
RGB	rgb(51, 60, 135)
HSL	hsl(234, 45%, 36%)
HSV	hsv(234, 62%, 53%)
CMYK	cmyk(62.2%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(28.60, 20.80, -43.28)
CIE-LCH	lch(28.60, 48.02, 295.67°)
OKLab	oklab(39.26% 0.0088 -0.1241)
OKLCH	oklch(39.26% 0.124 274)
XYZ	xyz(7.3528, 5.6842, 23.6267)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333C87 #877E33

analogous

#336687 #333C87 #543387

triadic

#333C87 #87333C #3C8733

tetradic

#333C87 #873366 #877E33 #338754

square

#333C87 #873366 #877E33 #338754

split-complementary

#333C87 #875433 #668733

monochromatic

#11152E #22285B #333C87 #4450B3 #6D76C8

Accessibility & contrast

On white

9.83

#333C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#333C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333C87

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333C87	#FFFFFF	#000000	##FFFFFF
##333C87	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A478A

Deuteranopia (green-blind)

#004085

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #333c87;
/* rgb */ color: rgb(51, 60, 135);
/* oklch */ color: oklch(39.3% 0.124 274.0);

Tailwind

colors: {
  custom: {
    50: '#7371aa',
    500: '#333c87',
    950: '#000000',
  },
}

SCSS

$custom: #333c87;
$custom-light: #7371aa;
$custom-dark: #000000;

JSON

{
  "hex": "#333c87",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 233.571,
    "s": 45.161,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39257,
    "c": 0.12444,
    "h": 274
  },
  "luminance": 0.05685
}

Semantic roles & 50–950 ramp

primary

#333C87

secondary

#B0A866

accent

#C753D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #333C87

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

Preview Lab → · Contrast checker → · Palette generator →