#305EA4#305EA4

#305EA4 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.6% C 0.124 H 258.6°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#305EA4
RGB	rgb(48, 94, 164)
HSL	hsl(216, 55%, 42%)
HSV	hsv(216, 71%, 64%)
CMYK	cmyk(70.7%, 42.7%, 0%, 35.7%)
CIE-LAB	lab(40.10, 8.45, -42.42)
CIE-LCH	lch(40.10, 43.25, 281.27°)
OKLab	oklab(48.61% -0.0243 -0.1211)
OKLCH	oklch(48.61% 0.124 258.6)
XYZ	xyz(11.9200, 11.3129, 36.6702)
Luminance	0.1131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EA4 #A47630

analogous

#3098A4 #305EA4 #3C30A4

triadic

#305EA4 #A4305E #5EA430

tetradic

#305EA4 #A43098 #A47630 #30A43C

square

#305EA4 #A43098 #A47630 #30A43C

split-complementary

#305EA4 #A43C30 #98A430

monochromatic

#142845 #224375 #305EA4 #487BC9 #779DD7

Accessibility & contrast

On white

6.44

#305EA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#305EA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EA4

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EA4	#FFFFFF	#000000	##FFFFFF
##305EA4	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D64A7

Deuteranopia (green-blind)

#295AA3

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305ea4;
/* rgb */ color: rgb(48, 94, 164);
/* oklch */ color: oklch(48.6% 0.124 258.6);

Tailwind

colors: {
  custom: {
    50: '#768bbf',
    500: '#305ea4',
    950: '#000000',
  },
}

SCSS

$custom: #305ea4;
$custom-light: #768bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#305ea4",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 164
  },
  "hsl": {
    "h": 216.207,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4861,
    "c": 0.12357,
    "h": 258.6
  },
  "luminance": 0.11314
}

Semantic roles & 50–950 ramp

primary

#305EA4

secondary

#BFA070

accent

#A34ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305EA4

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

Preview Lab → · Contrast checker → · Palette generator →