#303371#303371

#303371 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.4% C 0.105 H 277.5°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#303371
RGB	rgb(48, 51, 113)
HSL	hsl(237, 40%, 32%)
HSV	hsv(237, 58%, 44%)
CMYK	cmyk(57.5%, 54.9%, 0%, 55.7%)
CIE-LAB	lab(24.28, 18.37, -36.40)
CIE-LCH	lch(24.28, 40.78, 296.78°)
OKLab	oklab(35.45% 0.0137 -0.1041)
OKLCH	oklch(35.45% 0.105 277.5)
XYZ	xyz(5.3824, 4.1879, 16.1443)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303371 #716E30

analogous

#305471 #303371 #4E3071

triadic

#303371 #713033 #337130

tetradic

#303371 #713054 #716E30 #30714E

square

#303371 #713054 #716E30 #30714E

split-complementary

#303371 #714E30 #547130

monochromatic

#0C0C1B #1E2046 #303371 #42469C #6064BB

Accessibility & contrast

On white

11.43

#303371 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#303371 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303371

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303371	#FFFFFF	#000000	##FFFFFF
##303371	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113C73

Deuteranopia (green-blind)

#063770

Tritanopia (blue-blind)

#10414C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #303371;
/* rgb */ color: rgb(48, 51, 113);
/* oklch */ color: oklch(35.4% 0.105 277.5);

Tailwind

colors: {
  custom: {
    50: '#6e6a9a',
    500: '#303371',
    950: '#000000',
  },
}

SCSS

$custom: #303371;
$custom-light: #6e6a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#303371",
  "rgb": {
    "r": 48,
    "g": 51,
    "b": 113
  },
  "hsl": {
    "h": 237.231,
    "s": 40.373,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35449,
    "c": 0.10496,
    "h": 277.5
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#303371

secondary

#A29F5B

accent

#CB58D0

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #303371

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

Preview Lab → · Contrast checker → · Palette generator →