#333F87#333F87

#333F87 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.120 H 272.7°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#333F87
RGB	rgb(51, 63, 135)
HSL	hsl(231, 45%, 36%)
HSV	hsv(231, 62%, 53%)
CMYK	cmyk(62.2%, 53.3%, 0%, 47.1%)
CIE-LAB	lab(29.43, 18.77, -41.94)
CIE-LCH	lch(29.43, 45.95, 294.11°)
OKLab	oklab(39.88% 0.0056 -0.1201)
OKLCH	oklch(39.88% 0.12 272.7)
XYZ	xyz(7.5145, 6.0075, 23.6805)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333F87 #877B33

analogous

#336987 #333F87 #513387

triadic

#333F87 #87333F #3F8733

tetradic

#333F87 #873369 #877B33 #338751

square

#333F87 #873369 #877B33 #338751

split-complementary

#333F87 #875133 #698733

monochromatic

#11162E #222A5B #333F87 #4454B3 #6D7AC8

Accessibility & contrast

On white

9.54

#333F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#333F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333F87

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333F87	#FFFFFF	#000000	##FFFFFF
##333F87	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15498A

Deuteranopia (green-blind)

#004286

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333f87;
/* rgb */ color: rgb(51, 63, 135);
/* oklch */ color: oklch(39.9% 0.120 272.7);

Tailwind

colors: {
  custom: {
    50: '#7373aa',
    500: '#333f87',
    950: '#000000',
  },
}

SCSS

$custom: #333f87;
$custom-light: #7373aa;
$custom-dark: #000000;

JSON

{
  "hex": "#333f87",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 135
  },
  "hsl": {
    "h": 231.429,
    "s": 45.161,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39881,
    "c": 0.12028,
    "h": 272.7
  },
  "luminance": 0.06008
}

Semantic roles & 50–950 ramp

primary

#333F87

secondary

#B0A566

accent

#C253D5

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #333F87

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

Preview Lab → · Contrast checker → · Palette generator →