#305EA3#305EA3

#305EA3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.5% C 0.122 H 258.4°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#305EA3
RGB	rgb(48, 94, 163)
HSL	hsl(216, 55%, 41%)
HSV	hsv(216, 71%, 64%)
CMYK	cmyk(70.6%, 42.3%, 0%, 36.1%)
CIE-LAB	lab(40.04, 8.08, -41.92)
CIE-LCH	lch(40.04, 42.69, 280.91°)
OKLab	oklab(48.55% -0.0245 -0.1197)
OKLCH	oklch(48.55% 0.122 258.4)
XYZ	xyz(11.8301, 11.2769, 36.1964)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EA3 #A37530

analogous

#3098A3 #305EA3 #3C30A3

triadic

#305EA3 #A3305E #5EA330

tetradic

#305EA3 #A33098 #A37530 #30A33C

square

#305EA3 #A33098 #A37530 #30A33C

split-complementary

#305EA3 #A33C30 #98A330

monochromatic

#142744 #224374 #305EA3 #477BC9 #779DD7

Accessibility & contrast

On white

6.45

#305EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#305EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EA3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EA3	#FFFFFF	#000000	##FFFFFF
##305EA3	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D64A6

Deuteranopia (green-blind)

#2B59A2

Tritanopia (blue-blind)

#006E78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305ea3;
/* rgb */ color: rgb(48, 94, 163);
/* oklch */ color: oklch(48.5% 0.122 258.4);

Tailwind

colors: {
  custom: {
    50: '#768bbf',
    500: '#305ea3',
    950: '#000000',
  },
}

SCSS

$custom: #305ea3;
$custom-light: #768bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#305ea3",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 163
  },
  "hsl": {
    "h": 216,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48545,
    "c": 0.12217,
    "h": 258.4
  },
  "luminance": 0.11278
}

Semantic roles & 50–950 ramp

primary

#305EA3

secondary

#BF9F70

accent

#A34ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305EA3

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

Preview Lab → · Contrast checker → · Palette generator →