#30579C#30579C

#30579C is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.121 H 260.9°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#30579C
RGB	rgb(48, 87, 156)
HSL	hsl(218, 53%, 40%)
HSV	hsv(218, 69%, 61%)
CMYK	cmyk(69.2%, 44.2%, 0%, 38.8%)
CIE-LAB	lab(37.56, 10.00, -41.71)
CIE-LCH	lch(37.56, 42.89, 283.48°)
OKLab	oklab(46.49% -0.0191 -0.1192)
OKLCH	oklch(46.49% 0.121 260.9)
XYZ	xyz(10.6257, 9.8440, 32.7861)
Luminance	0.0984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30579C #9C7530

analogous

#308D9C #30579C #3F309C

triadic

#30579C #9C3057 #579C30

tetradic

#30579C #9C308D #9C7530 #309C3F

square

#30579C #9C308D #9C7530 #309C3F

split-complementary

#30579C #9C3F30 #8D9C30

monochromatic

#13233E #223D6D #30579C #4473C5 #7396D4

Accessibility & contrast

On white

7.07

#30579C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#30579C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30579C

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30579C	#FFFFFF	#000000	##FFFFFF
##30579C	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365E9F

Deuteranopia (green-blind)

#23549B

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #30579c;
/* rgb */ color: rgb(48, 87, 156);
/* oklch */ color: oklch(46.5% 0.121 260.9);

Tailwind

colors: {
  custom: {
    50: '#7585ba',
    500: '#30579c',
    950: '#000000',
  },
}

SCSS

$custom: #30579c;
$custom-light: #7585ba;
$custom-dark: #000000;

JSON

{
  "hex": "#30579c",
  "rgb": {
    "r": 48,
    "g": 87,
    "b": 156
  },
  "hsl": {
    "h": 218.333,
    "s": 52.941,
    "l": 40
  },
  "oklch": {
    "l": 0.46489,
    "c": 0.12068,
    "h": 260.9
  },
  "luminance": 0.09845
}

Semantic roles & 50–950 ramp

primary

#30579C

secondary

#BC9F6C

accent

#A84BDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #30579C

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

Preview Lab → · Contrast checker → · Palette generator →