#306AB3#306AB3

#306AB3 is a mid, vivid cyan. Relative luminance 0.142; OKLCH L 52.3% C 0.130 H 255.6°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#306AB3
RGB	rgb(48, 106, 179)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 73%, 70%)
CMYK	cmyk(73.2%, 40.8%, 0%, 29.8%)
CIE-LAB	lab(44.50, 6.41, -44.23)
CIE-LCH	lch(44.50, 44.69, 278.25°)
OKLab	oklab(52.31% -0.0325 -0.1263)
OKLCH	oklch(52.31% 0.13 255.6)
XYZ	xyz(14.5066, 14.1895, 44.6134)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306AB3 #B37930

analogous

#30ACB3 #306AB3 #3830B3

triadic

#306AB3 #B3306A #6AB330

tetradic

#306AB3 #B330AC #B37930 #30B338

square

#306AB3 #B330AC #B37930 #30B338

split-complementary

#306AB3 #B33830 #ACB330

monochromatic

#163152 #234D83 #306AB3 #5089D0 #80A9DD

Accessibility & contrast

On white

5.47

#306AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#306AB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306AB3

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306AB3	#FFFFFF	#000000	##FFFFFF
##306AB3	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4770B6

Deuteranopia (green-blind)

#3264B2

Tritanopia (blue-blind)

#007B86

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #306ab3;
/* rgb */ color: rgb(48, 106, 179);
/* oklch */ color: oklch(52.3% 0.130 255.6);

Tailwind

colors: {
  custom: {
    50: '#7994ca',
    500: '#306ab3',
    950: '#000000',
  },
}

SCSS

$custom: #306ab3;
$custom-light: #7994ca;
$custom-dark: #000000;

JSON

{
  "hex": "#306ab3",
  "rgb": {
    "r": 48,
    "g": 106,
    "b": 179
  },
  "hsl": {
    "h": 213.435,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52311,
    "c": 0.13037,
    "h": 255.6
  },
  "luminance": 0.14191
}

Semantic roles & 50–950 ramp

primary

#306AB3

secondary

#C6A479

accent

#9D47E1

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306AB3

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

Preview Lab → · Contrast checker → · Palette generator →