#30307B#30307B

#30307B is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.124 H 278.0°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#30307B
RGB	rgb(48, 48, 123)
HSL	hsl(240, 44%, 34%)
HSV	hsv(240, 61%, 48%)
CMYK	cmyk(61%, 61%, 0%, 51.8%)
CIE-LAB	lab(24.23, 24.00, -42.85)
CIE-LCH	lch(24.23, 49.11, 299.25°)
OKLab	oklab(35.65% 0.0174 -0.1231)
OKLCH	oklch(35.65% 0.124 278)
XYZ	xyz(5.8499, 4.1719, 19.2320)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30307B #7B7B30

analogous

#30557B #30307B #55307B

triadic

#30307B #7B3030 #307B30

tetradic

#30307B #7B3055 #7B7B30 #307B55

square

#30307B #7B3055 #7B7B30 #307B55

split-complementary

#30307B #7B5530 #557B30

monochromatic

#0E0E23 #1F1F4F #30307B #4141A7 #6363C2

Accessibility & contrast

On white

11.45

#30307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#30307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30307B

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30307B	#FFFFFF	#000000	##FFFFFF
##30307B	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7D

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #30307b;
/* rgb */ color: rgb(48, 48, 123);
/* oklch */ color: oklch(35.7% 0.124 278.0);

Tailwind

colors: {
  custom: {
    50: '#7068a2',
    500: '#30307b',
    950: '#000000',
  },
}

SCSS

$custom: #30307b;
$custom-light: #7068a2;
$custom-dark: #000000;

JSON

{
  "hex": "#30307b",
  "rgb": {
    "r": 48,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 240,
    "s": 43.86,
    "l": 33.529
  },
  "oklch": {
    "l": 0.35653,
    "c": 0.12428,
    "h": 278
  },
  "luminance": 0.04172
}

Semantic roles & 50–950 ramp

primary

#30307B

secondary

#A9A95D

accent

#D454D4

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #30307B

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

Preview Lab → · Contrast checker → · Palette generator →