#30366B#30366B

#30366B is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.6% C 0.091 H 275.9°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#30366B
RGB	rgb(48, 54, 107)
HSL	hsl(234, 38%, 30%)
HSV	hsv(234, 55%, 42%)
CMYK	cmyk(55.1%, 49.5%, 0%, 58%)
CIE-LAB	lab(24.73, 14.16, -31.84)
CIE-LCH	lch(24.73, 34.85, 293.97°)
OKLab	oklab(35.65% 0.0094 -0.0906)
OKLCH	oklch(35.65% 0.091 275.9)
XYZ	xyz(5.1911, 4.3279, 14.4689)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30366B #6B6530

analogous

#30536B #30366B #47306B

triadic

#30366B #6B3036 #366B30

tetradic

#30366B #6B3053 #6B6530 #306B47

square

#30366B #6B3053 #6B6530 #306B47

split-complementary

#30366B #6B4730 #536B30

monochromatic

#0A0B17 #1D2141 #30366B #434B95 #5E67B7

Accessibility & contrast

On white

11.26

#30366B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#30366B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30366B

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30366B	#FFFFFF	#000000	##FFFFFF
##30366B	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3D6D

Deuteranopia (green-blind)

#18386A

Tritanopia (blue-blind)

#16424B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #30366b;
/* rgb */ color: rgb(48, 54, 107);
/* oklch */ color: oklch(35.6% 0.091 275.9);

Tailwind

colors: {
  custom: {
    50: '#6d6c96',
    500: '#30366b',
    950: '#000000',
  },
}

SCSS

$custom: #30366b;
$custom-light: #6d6c96;
$custom-dark: #000000;

JSON

{
  "hex": "#30366b",
  "rgb": {
    "r": 48,
    "g": 54,
    "b": 107
  },
  "hsl": {
    "h": 233.898,
    "s": 38.065,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3565,
    "c": 0.0911,
    "h": 275.9
  },
  "luminance": 0.04328
}

Semantic roles & 50–950 ramp

primary

#30366B

secondary

#9C965B

accent

#C25ACE

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07070D

muted

#7A7A7E

Preview Lab

Preview with #30366B

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

Preview Lab → · Contrast checker → · Palette generator →