#30378F#30378F

#30378F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.144 H 274.1°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#30378F
RGB	rgb(48, 55, 143)
HSL	hsl(236, 50%, 37%)
HSV	hsv(236, 66%, 56%)
CMYK	cmyk(66.4%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.69, 26.53, -49.72)
CIE-LCH	lch(27.69, 56.36, 298.08°)
OKLab	oklab(38.72% 0.0102 -0.1432)
OKLCH	oklch(38.72% 0.144 274.1)
XYZ	xyz(7.5414, 5.3433, 26.6152)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30378F #8F8830

analogous

#30668F #30378F #59308F

triadic

#30378F #8F3037 #378F30

tetradic

#30378F #8F3066 #8F8830 #308F59

square

#30378F #8F3066 #8F8830 #308F59

split-complementary

#30378F #8F5930 #668F30

monochromatic

#111433 #212561 #30378F #3F49BD #6C73CE

Accessibility & contrast

On white

10.15

#30378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#30378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30378F

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30378F	#FFFFFF	#000000	##FFFFFF
##30378F	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #30378f;
/* rgb */ color: rgb(48, 55, 143);
/* oklch */ color: oklch(38.7% 0.144 274.1);

Tailwind

colors: {
  custom: {
    50: '#746db1',
    500: '#30378f',
    950: '#000000',
  },
}

SCSS

$custom: #30378f;
$custom-light: #746db1;
$custom-dark: #000000;

JSON

{
  "hex": "#30378f",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 235.579,
    "s": 49.738,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38723,
    "c": 0.14355,
    "h": 274.1
  },
  "luminance": 0.05344
}

Semantic roles & 50–950 ramp

primary

#30378F

secondary

#B5AF66

accent

#CF4FD9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #30378F

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

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