#30397F#30397F

#30397F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.8% C 0.118 H 273.9°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#30397F
RGB	rgb(48, 57, 127)
HSL	hsl(233, 45%, 34%)
HSV	hsv(233, 62%, 50%)
CMYK	cmyk(62.2%, 55.1%, 0%, 50.2%)
CIE-LAB	lab(26.98, 19.33, -40.92)
CIE-LCH	lch(26.98, 45.26, 295.29°)
OKLab	oklab(37.8% 0.0079 -0.1173)
OKLCH	oklch(37.8% 0.118 273.9)
XYZ	xyz(6.5116, 5.0864, 20.7132)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30397F #7F7630

analogous

#30617F #30397F #4F307F

triadic

#30397F #7F3039 #397F30

tetradic

#30397F #7F3061 #7F7630 #307F4F

square

#30397F #7F3061 #7F7630 #307F4F

split-complementary

#30397F #7F4F30 #617F30

monochromatic

#0E1126 #1F2553 #30397F #414DAB #6570C5

Accessibility & contrast

On white

10.41

#30397F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#30397F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30397F

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30397F	#FFFFFF	#000000	##FFFFFF
##30397F	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4381

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #30397f;
/* rgb */ color: rgb(48, 57, 127);
/* oklch */ color: oklch(37.8% 0.118 273.9);

Tailwind

colors: {
  custom: {
    50: '#716fa5',
    500: '#30397f',
    950: '#000000',
  },
}

SCSS

$custom: #30397f;
$custom-light: #716fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#30397f",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 127
  },
  "hsl": {
    "h": 233.165,
    "s": 45.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37799,
    "c": 0.11757,
    "h": 273.9
  },
  "luminance": 0.05087
}

Semantic roles & 50–950 ramp

primary

#30397F

secondary

#ACA35F

accent

#C653D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #30397F

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

Preview Lab → · Contrast checker → · Palette generator →