#306CB7#306CB7

#306CB7 is a mid, vivid cyan. Relative luminance 0.148; OKLCH L 53.0% C 0.134 H 255.5°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#306CB7
RGB	rgb(48, 108, 183)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 74%, 72%)
CMYK	cmyk(73.8%, 41%, 0%, 28.2%)
CIE-LAB	lab(45.32, 6.65, -45.26)
CIE-LCH	lch(45.32, 45.75, 278.36°)
OKLab	oklab(53.02% -0.0334 -0.1293)
OKLCH	oklch(53.02% 0.134 255.5)
XYZ	xyz(15.1256, 14.7707, 46.8444)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB7 #B77B30

analogous

#30B0B7 #306CB7 #3730B7

triadic

#306CB7 #B7306C #6CB730

tetradic

#306CB7 #B730B0 #B77B30 #30B737

square

#306CB7 #B730B0 #B77B30 #30B737

split-complementary

#306CB7 #B73730 #B0B730

monochromatic

#173356 #234F87 #306CB7 #528BD2 #83ACDE

Accessibility & contrast

On white

5.31

#306CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#306CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB7

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB7	#FFFFFF	#000000	##FFFFFF
##306CB7	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4872BA

Deuteranopia (green-blind)

#3266B5

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306cb7;
/* rgb */ color: rgb(48, 108, 183);
/* oklch */ color: oklch(53.0% 0.134 255.5);

Tailwind

colors: {
  custom: {
    50: '#7a95cd',
    500: '#306cb7',
    950: '#000000',
  },
}

SCSS

$custom: #306cb7;
$custom-light: #7a95cd;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb7",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 183
  },
  "hsl": {
    "h": 213.333,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53019,
    "c": 0.13351,
    "h": 255.5
  },
  "luminance": 0.14772
}

Semantic roles & 50–950 ramp

primary

#306CB7

secondary

#C8A67B

accent

#9D46E2

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB7

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

Preview Lab → · Contrast checker → · Palette generator →