#30378C#30378C

#30378C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.139 H 274.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#30378C
RGB	rgb(48, 55, 140)
HSL	hsl(235, 49%, 37%)
HSV	hsv(235, 66%, 55%)
CMYK	cmyk(65.7%, 60.7%, 0%, 45.1%)
CIE-LAB	lab(27.45, 25.44, -48.27)
CIE-LCH	lch(27.45, 54.56, 297.79°)
OKLab	oklab(38.46% 0.0103 -0.1389)
OKLCH	oklch(38.46% 0.139 274.2)
XYZ	xyz(7.3172, 5.2536, 25.4343)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30378C #8C8530

analogous

#30658C #30378C #57308C

triadic

#30378C #8C3037 #378C30

tetradic

#30378C #8C3065 #8C8530 #308C57

square

#30378C #8C3065 #8C8530 #308C57

split-complementary

#30378C #8C5730 #658C30

monochromatic

#111331 #20255E #30378C #4049BA #6A72CC

Accessibility & contrast

On white

10.24

#30378C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#30378C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30378C

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30378C	#FFFFFF	#000000	##FFFFFF
##30378C	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #30378c;
/* rgb */ color: rgb(48, 55, 140);
/* oklch */ color: oklch(38.5% 0.139 274.2);

Tailwind

colors: {
  custom: {
    50: '#736dae',
    500: '#30378c',
    950: '#000000',
  },
}

SCSS

$custom: #30378c;
$custom-light: #736dae;
$custom-dark: #000000;

JSON

{
  "hex": "#30378c",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 140
  },
  "hsl": {
    "h": 235.435,
    "s": 48.936,
    "l": 36.863
  },
  "oklch": {
    "l": 0.38464,
    "c": 0.1393,
    "h": 274.2
  },
  "luminance": 0.05254
}

Semantic roles & 50–950 ramp

primary

#30378C

secondary

#B3AD64

accent

#CE4FD8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #30378C

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

Preview Lab → · Contrast checker → · Palette generator →