#306EB9#306EB9

#306EB9 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.6% C 0.134 H 255.0°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#306EB9
RGB	rgb(48, 110, 185)
HSL	hsl(213, 59%, 46%)
HSV	hsv(213, 74%, 73%)
CMYK	cmyk(74.1%, 40.5%, 0%, 27.5%)
CIE-LAB	lab(46.02, 6.14, -45.31)
CIE-LCH	lch(46.02, 45.72, 277.72°)
OKLab	oklab(53.6% -0.0348 -0.1294)
OKLCH	oklch(53.6% 0.134 255)
XYZ	xyz(15.5486, 15.2813, 48.0197)
Luminance	0.1528 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB9 #B97B30

analogous

#30B2B9 #306EB9 #3730B9

triadic

#306EB9 #B9306E #6EB930

tetradic

#306EB9 #B930B2 #B97B30 #30B937

square

#306EB9 #B930B2 #B97B30 #30B937

split-complementary

#306EB9 #B93730 #B2B930

monochromatic

#173458 #235188 #306EB9 #548DD3 #84ADDF

Accessibility & contrast

On white

5.18

#306EB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#306EB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB9

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB9	#FFFFFF	#000000	##FFFFFF
##306EB9	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A74BC

Deuteranopia (green-blind)

#3467B7

Tritanopia (blue-blind)

#00808A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306eb9;
/* rgb */ color: rgb(48, 110, 185);
/* oklch */ color: oklch(53.6% 0.134 255.0);

Tailwind

colors: {
  custom: {
    50: '#7a97ce',
    500: '#306eb9',
    950: '#000000',
  },
}

SCSS

$custom: #306eb9;
$custom-light: #7a97ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb9",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 185
  },
  "hsl": {
    "h": 212.847,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.536,
    "c": 0.13395,
    "h": 255
  },
  "luminance": 0.15283
}

Semantic roles & 50–950 ramp

primary

#306EB9

secondary

#C9A67C

accent

#9B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306EB9

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

Preview Lab → · Contrast checker → · Palette generator →