#333D8F#333D8F

#333D8F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.135 H 273.4°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#333D8F
RGB	rgb(51, 61, 143)
HSL	hsl(233, 47%, 38%)
HSV	hsv(233, 64%, 56%)
CMYK	cmyk(64.3%, 57.3%, 0%, 43.9%)
CIE-LAB	lab(29.47, 23.03, -46.82)
CIE-LCH	lch(29.47, 52.18, 296.19°)
OKLab	oklab(40.1% 0.0081 -0.1345)
OKLCH	oklch(40.1% 0.135 273.4)
XYZ	xyz(7.9903, 6.0238, 26.7229)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333D8F #8F8533

analogous

#336B8F #333D8F #57338F

triadic

#333D8F #8F333D #3D8F33

tetradic

#333D8F #8F336B #8F8533 #338F57

square

#333D8F #8F336B #8F8533 #338F57

split-complementary

#333D8F #8F5733 #6B8F33

monochromatic

#131735 #232A62 #333D8F #4350BC #707ACC

Accessibility & contrast

On white

9.52

#333D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#333D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333D8F

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333D8F	#FFFFFF	#000000	##FFFFFF
##333D8F	1.00	9.52	2.20	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333d8f;
/* rgb */ color: rgb(51, 61, 143);
/* oklch */ color: oklch(40.1% 0.135 273.4);

Tailwind

colors: {
  custom: {
    50: '#7572b0',
    500: '#333d8f',
    950: '#000000',
  },
}

SCSS

$custom: #333d8f;
$custom-light: #7572b0;
$custom-dark: #000000;

JSON

{
  "hex": "#333d8f",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 143
  },
  "hsl": {
    "h": 233.478,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40099,
    "c": 0.13476,
    "h": 273.4
  },
  "luminance": 0.06024
}

Semantic roles & 50–950 ramp

primary

#333D8F

secondary

#B4AC6A

accent

#C851D7

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090811

muted

#7B7B80

Preview Lab

Preview with #333D8F

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

Preview Lab → · Contrast checker → · Palette generator →