#306EB4#306EB4

#306EB4 is a mid, vivid cyan. Relative luminance 0.151; OKLCH L 53.3% C 0.127 H 253.6°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#306EB4
RGB	rgb(48, 110, 180)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 71%)
CMYK	cmyk(73.3%, 38.9%, 0%, 29.4%)
CIE-LAB	lab(45.74, 4.28, -42.85)
CIE-LCH	lch(45.74, 43.07, 275.71°)
OKLab	oklab(53.29% -0.036 -0.1222)
OKLCH	oklch(53.29% 0.127 253.6)
XYZ	xyz(15.0300, 15.0739, 45.2886)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB4 #B47630

analogous

#30B0B4 #306EB4 #3430B4

triadic

#306EB4 #B4306E #6EB430

tetradic

#306EB4 #B430B0 #B47630 #30B434

square

#306EB4 #B430B0 #B47630 #30B434

split-complementary

#306EB4 #B43430 #B0B430

monochromatic

#163353 #235084 #306EB4 #518DD1 #81ACDD

Accessibility & contrast

On white

5.23

#306EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#306EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB4

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB4	#FFFFFF	#000000	##FFFFFF
##306EB4	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D73B7

Deuteranopia (green-blind)

#3967B3

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306eb4;
/* rgb */ color: rgb(48, 110, 180);
/* oklch */ color: oklch(53.3% 0.127 253.6);

Tailwind

colors: {
  custom: {
    50: '#7997cb',
    500: '#306eb4',
    950: '#000000',
  },
}

SCSS

$custom: #306eb4;
$custom-light: #7997cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb4",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 180
  },
  "hsl": {
    "h": 211.818,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53289,
    "c": 0.12734,
    "h": 253.6
  },
  "luminance": 0.15076
}

Semantic roles & 50–950 ramp

primary

#306EB4

secondary

#C6A279

accent

#9947E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306EB4

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

Preview Lab → · Contrast checker → · Palette generator →