#306EB8#306EB8

#306EB8 is a mid, vivid cyan. Relative luminance 0.152; OKLCH L 53.5% C 0.133 H 254.7°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#306EB8
RGB	rgb(48, 110, 184)
HSL	hsl(213, 59%, 45%)
HSV	hsv(213, 74%, 72%)
CMYK	cmyk(73.9%, 40.2%, 0%, 27.8%)
CIE-LAB	lab(45.96, 5.77, -44.82)
CIE-LCH	lch(45.96, 45.19, 277.33°)
OKLab	oklab(53.54% -0.035 -0.1279)
OKLCH	oklch(53.54% 0.133 254.7)
XYZ	xyz(15.4434, 15.2392, 47.4657)
Luminance	0.1524 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB8 #B87A30

analogous

#30B2B8 #306EB8 #3630B8

triadic

#306EB8 #B8306E #6EB830

tetradic

#306EB8 #B830B2 #B87A30 #30B836

square

#306EB8 #B830B2 #B87A30 #30B836

split-complementary

#306EB8 #B83630 #B2B830

monochromatic

#173457 #235187 #306EB8 #538DD2 #84ADDF

Accessibility & contrast

On white

5.19

#306EB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#306EB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB8

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB8	#FFFFFF	#000000	##FFFFFF
##306EB8	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B74BB

Deuteranopia (green-blind)

#3567B7

Tritanopia (blue-blind)

#007F8A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306eb8;
/* rgb */ color: rgb(48, 110, 184);
/* oklch */ color: oklch(53.5% 0.133 254.7);

Tailwind

colors: {
  custom: {
    50: '#7a97ce',
    500: '#306eb8',
    950: '#000000',
  },
}

SCSS

$custom: #306eb8;
$custom-light: #7a97ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb8",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 184
  },
  "hsl": {
    "h": 212.647,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53537,
    "c": 0.13263,
    "h": 254.7
  },
  "luminance": 0.15241
}

Semantic roles & 50–950 ramp

primary

#306EB8

secondary

#C8A57C

accent

#9B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306EB8

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

Preview Lab → · Contrast checker → · Palette generator →