#305EA8#305EA8

#305EA8 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.129 H 259.5°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#305EA8
RGB	rgb(48, 94, 168)
HSL	hsl(217, 56%, 42%)
HSV	hsv(217, 71%, 66%)
CMYK	cmyk(71.4%, 44%, 0%, 34.1%)
CIE-LAB	lab(40.34, 9.95, -44.41)
CIE-LCH	lch(40.34, 45.51, 282.63°)
OKLab	oklab(48.88% -0.0235 -0.127)
OKLCH	oklch(48.88% 0.129 259.5)
XYZ	xyz(12.2870, 11.4596, 38.6026)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EA8 #A87A30

analogous

#309AA8 #305EA8 #3E30A8

triadic

#305EA8 #A8305E #5EA830

tetradic

#305EA8 #A8309A #A87A30 #30A83E

square

#305EA8 #A8309A #A87A30 #30A83E

split-complementary

#305EA8 #A83E30 #9AA830

monochromatic

#152949 #224378 #305EA8 #4A7CCB #7A9ED9

Accessibility & contrast

On white

6.38

#305EA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#305EA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EA8

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EA8	#FFFFFF	#000000	##FFFFFF
##305EA8	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A65AB

Deuteranopia (green-blind)

#245AA6

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305ea8;
/* rgb */ color: rgb(48, 94, 168);
/* oklch */ color: oklch(48.9% 0.129 259.5);

Tailwind

colors: {
  custom: {
    50: '#778bc2',
    500: '#305ea8',
    950: '#000000',
  },
}

SCSS

$custom: #305ea8;
$custom-light: #778bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#305ea8",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 168
  },
  "hsl": {
    "h": 217,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48875,
    "c": 0.12914,
    "h": 259.5
  },
  "luminance": 0.11461
}

Semantic roles & 50–950 ramp

primary

#305EA8

secondary

#C1A373

accent

#A549DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305EA8

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

Preview Lab → · Contrast checker → · Palette generator →