#333C8F#333C8F

#333C8F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.136 H 273.8°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#333C8F
RGB	rgb(51, 60, 143)
HSL	hsl(234, 47%, 38%)
HSV	hsv(234, 64%, 56%)
CMYK	cmyk(64.3%, 58%, 0%, 43.9%)
CIE-LAB	lab(29.20, 23.70, -47.25)
CIE-LCH	lch(29.20, 52.86, 296.64°)
OKLab	oklab(39.9% 0.0091 -0.1358)
OKLCH	oklch(39.9% 0.136 273.8)
XYZ	xyz(7.9374, 5.9180, 26.7053)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333C8F #8F8633

analogous

#336A8F #333C8F #58338F

triadic

#333C8F #8F333C #3C8F33

tetradic

#333C8F #8F336A #8F8633 #338F58

square

#333C8F #8F336A #8F8633 #338F58

split-complementary

#333C8F #8F5833 #6A8F33

monochromatic

#131635 #232962 #333C8F #434FBC #7079CC

Accessibility & contrast

On white

9.62

#333C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#333C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333C8F

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333C8F	#FFFFFF	#000000	##FFFFFF
##333C8F	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#00418D

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333c8f;
/* rgb */ color: rgb(51, 60, 143);
/* oklch */ color: oklch(39.9% 0.136 273.8);

Tailwind

colors: {
  custom: {
    50: '#7571b0',
    500: '#333c8f',
    950: '#000000',
  },
}

SCSS

$custom: #333c8f;
$custom-light: #7571b0;
$custom-dark: #000000;

JSON

{
  "hex": "#333c8f",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 143
  },
  "hsl": {
    "h": 234.13,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39899,
    "c": 0.1361,
    "h": 273.8
  },
  "luminance": 0.05919
}

Semantic roles & 50–950 ramp

primary

#333C8F

secondary

#B4AD6A

accent

#CA51D7

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #333C8F

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

Preview Lab → · Contrast checker → · Palette generator →