#306EB0#306EB0

#306EB0 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.0% C 0.122 H 252.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#306EB0
RGB	rgb(48, 110, 176)
HSL	hsl(211, 57%, 44%)
HSV	hsv(211, 73%, 69%)
CMYK	cmyk(72.7%, 37.5%, 0%, 31%)
CIE-LAB	lab(45.52, 2.80, -40.87)
CIE-LCH	lch(45.52, 40.97, 273.92°)
OKLab	oklab(53.04% -0.037 -0.1163)
OKLCH	oklch(53.04% 0.122 252.4)
XYZ	xyz(14.6284, 14.9132, 43.1735)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB0 #B07230

analogous

#30AEB0 #306EB0 #3230B0

triadic

#306EB0 #B0306E #6EB030

tetradic

#306EB0 #B030AE #B07230 #30B032

square

#306EB0 #B030AE #B07230 #30B032

split-complementary

#306EB0 #B03230 #AEB030

monochromatic

#163250 #235080 #306EB0 #4E8DCF #7EACDC

Accessibility & contrast

On white

5.27

#306EB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#306EB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB0

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB0	#FFFFFF	#000000	##FFFFFF
##306EB0	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5072B3

Deuteranopia (green-blind)

#3D66AF

Tritanopia (blue-blind)

#007E86

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306eb0;
/* rgb */ color: rgb(48, 110, 176);
/* oklch */ color: oklch(53.0% 0.122 252.4);

Tailwind

colors: {
  custom: {
    50: '#7997c8',
    500: '#306eb0',
    950: '#000000',
  },
}

SCSS

$custom: #306eb0;
$custom-light: #7997c8;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb0",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 176
  },
  "hsl": {
    "h": 210.938,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.53045,
    "c": 0.12208,
    "h": 252.4
  },
  "luminance": 0.14915
}

Semantic roles & 50–950 ramp

primary

#306EB0

secondary

#C59F77

accent

#9647E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306EB0

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

Preview Lab → · Contrast checker → · Palette generator →