#305CA8#305CA8

#305CA8 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.4% C 0.132 H 260.5°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#305CA8
RGB	rgb(48, 92, 168)
HSL	hsl(218, 56%, 42%)
HSV	hsv(218, 71%, 66%)
CMYK	cmyk(71.4%, 45.2%, 0%, 34.1%)
CIE-LAB	lab(39.76, 11.25, -45.34)
CIE-LCH	lch(39.76, 46.71, 283.94°)
OKLab	oklab(48.43% -0.0216 -0.1297)
OKLCH	oklch(48.43% 0.132 260.5)
XYZ	xyz(12.1114, 11.1085, 38.5441)
Luminance	0.1111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CA8 #A87C30

analogous

#3098A8 #305CA8 #4030A8

triadic

#305CA8 #A8305C #5CA830

tetradic

#305CA8 #A83098 #A87C30 #30A840

square

#305CA8 #A83098 #A87C30 #30A840

split-complementary

#305CA8 #A84030 #98A830

monochromatic

#152849 #224278 #305CA8 #4A79CB #7A9CD9

Accessibility & contrast

On white

6.52

#305CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#305CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CA8

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CA8	#FFFFFF	#000000	##FFFFFF
##305CA8	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3664AB

Deuteranopia (green-blind)

#1F59A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305ca8;
/* rgb */ color: rgb(48, 92, 168);
/* oklch */ color: oklch(48.4% 0.132 260.5);

Tailwind

colors: {
  custom: {
    50: '#7789c2',
    500: '#305ca8',
    950: '#000000',
  },
}

SCSS

$custom: #305ca8;
$custom-light: #7789c2;
$custom-dark: #000000;

JSON

{
  "hex": "#305ca8",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 168
  },
  "hsl": {
    "h": 218,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48427,
    "c": 0.13154,
    "h": 260.5
  },
  "luminance": 0.1111
}

Semantic roles & 50–950 ramp

primary

#305CA8

secondary

#C1A473

accent

#A849DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305CA8

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

Preview Lab → · Contrast checker → · Palette generator →