#306BB8#306BB8

#306BB8 is a mid, vivid cyan. Relative luminance 0.146; OKLCH L 52.9% C 0.136 H 256.3°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#306BB8
RGB	rgb(48, 107, 184)
HSL	hsl(214, 59%, 45%)
HSV	hsv(214, 74%, 72%)
CMYK	cmyk(73.9%, 41.8%, 0%, 27.8%)
CIE-LAB	lab(45.09, 7.65, -46.22)
CIE-LCH	lch(45.09, 46.84, 279.40°)
OKLab	oklab(52.86% -0.0323 -0.1321)
OKLCH	oklch(52.86% 0.136 256.3)
XYZ	xyz(15.1252, 14.6028, 47.3596)
Luminance	0.1460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BB8 #B87D30

analogous

#30AFB8 #306BB8 #3930B8

triadic

#306BB8 #B8306B #6BB830

tetradic

#306BB8 #B830AF #B87D30 #30B839

square

#306BB8 #B830AF #B87D30 #30B839

split-complementary

#306BB8 #B83930 #AFB830

monochromatic

#173357 #234F87 #306BB8 #538AD2 #84ABDF

Accessibility & contrast

On white

5.36

#306BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#306BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BB8

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BB8	#FFFFFF	#000000	##FFFFFF
##306BB8	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4671BB

Deuteranopia (green-blind)

#2F65B6

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306bb8;
/* rgb */ color: rgb(48, 107, 184);
/* oklch */ color: oklch(52.9% 0.136 256.3);

Tailwind

colors: {
  custom: {
    50: '#7a94ce',
    500: '#306bb8',
    950: '#000000',
  },
}

SCSS

$custom: #306bb8;
$custom-light: #7a94ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306bb8",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 184
  },
  "hsl": {
    "h": 213.971,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52857,
    "c": 0.13596,
    "h": 256.3
  },
  "luminance": 0.14604
}

Semantic roles & 50–950 ramp

primary

#306BB8

secondary

#C8A77C

accent

#9E46E2

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #306BB8

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

Preview Lab → · Contrast checker → · Palette generator →