#30397B#30397B

#30397B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.5% C 0.112 H 273.9°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#30397B
RGB	rgb(48, 57, 123)
HSL	hsl(233, 44%, 34%)
HSV	hsv(233, 61%, 48%)
CMYK	cmyk(61%, 53.7%, 0%, 51.8%)
CIE-LAB	lab(26.69, 17.87, -38.87)
CIE-LCH	lch(26.69, 42.79, 294.69°)
OKLab	oklab(37.49% 0.0076 -0.1113)
OKLCH	oklch(37.49% 0.112 273.9)
XYZ	xyz(6.2560, 4.9842, 19.3674)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30397B #7B7230

analogous

#305E7B #30397B #4C307B

triadic

#30397B #7B3039 #397B30

tetradic

#30397B #7B305E #7B7230 #307B4C

square

#30397B #7B305E #7B7230 #307B4C

split-complementary

#30397B #7B4C30 #5E7B30

monochromatic

#0E1023 #1F254F #30397B #414DA7 #636FC2

Accessibility & contrast

On white

10.52

#30397B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#30397B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30397B

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30397B	#FFFFFF	#000000	##FFFFFF
##30397B	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14427D

Deuteranopia (green-blind)

#033C7A

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #30397b;
/* rgb */ color: rgb(48, 57, 123);
/* oklch */ color: oklch(37.5% 0.112 273.9);

Tailwind

colors: {
  custom: {
    50: '#706fa2',
    500: '#30397b',
    950: '#000000',
  },
}

SCSS

$custom: #30397b;
$custom-light: #706fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#30397b",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 123
  },
  "hsl": {
    "h": 232.8,
    "s": 43.86,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37488,
    "c": 0.11153,
    "h": 273.9
  },
  "luminance": 0.04985
}

Semantic roles & 50–950 ramp

primary

#30397B

secondary

#A9A05D

accent

#C454D4

background

#F7F6FA

surface

#EDECF3

border

#C8C7CD

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #30397B

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

Preview Lab → · Contrast checker → · Palette generator →