#303688#303688

#303688 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.9% C 0.135 H 274.8°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#303688
RGB	rgb(48, 54, 136)
HSL	hsl(236, 48%, 36%)
HSV	hsv(236, 65%, 53%)
CMYK	cmyk(64.7%, 60.3%, 0%, 46.7%)
CIE-LAB	lab(26.86, 24.65, -46.74)
CIE-LCH	lch(26.86, 52.84, 297.81°)
OKLab	oklab(37.93% 0.0113 -0.1344)
OKLCH	oklch(37.93% 0.135 274.8)
XYZ	xyz(6.9806, 5.0437, 23.8935)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303688 #888230

analogous

#306288 #303688 #563088

triadic

#303688 #883036 #368830

tetradic

#303688 #883062 #888230 #308856

square

#303688 #883062 #888230 #308856

split-complementary

#303688 #885630 #628830

monochromatic

#10122E #20245B #303688 #4048B5 #696FCA

Accessibility & contrast

On white

10.45

#303688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#303688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303688

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303688	#FFFFFF	#000000	##FFFFFF
##303688	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #303688;
/* rgb */ color: rgb(48, 54, 136);
/* oklch */ color: oklch(37.9% 0.135 274.8);

Tailwind

colors: {
  custom: {
    50: '#736dab',
    500: '#303688',
    950: '#000000',
  },
}

SCSS

$custom: #303688;
$custom-light: #736dab;
$custom-dark: #000000;

JSON

{
  "hex": "#303688",
  "rgb": {
    "r": 48,
    "g": 54,
    "b": 136
  },
  "hsl": {
    "h": 235.909,
    "s": 47.826,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37928,
    "c": 0.13491,
    "h": 274.8
  },
  "luminance": 0.05044
}

Semantic roles & 50–950 ramp

primary

#303688

secondary

#B1AC63

accent

#CE50D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #303688

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

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