#306D99#306D99

#306D99 is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.5% C 0.094 H 243.0°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#306D99
RGB	rgb(48, 109, 153)
HSL	hsl(205, 52%, 39%)
HSV	hsv(205, 69%, 60%)
CMYK	cmyk(68.6%, 28.8%, 0%, 40%)
CIE-LAB	lab(44.04, -4.95, -29.67)
CIE-LCH	lch(44.04, 30.08, 260.52°)
OKLab	oklab(51.5% -0.0427 -0.0837)
OKLCH	oklch(51.5% 0.094 243)
XYZ	xyz(12.4351, 13.8643, 32.1515)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306D99 #995C30

analogous

#309991 #306D99 #303899

triadic

#306D99 #99306D #6D9930

tetradic

#306D99 #913099 #995C30 #389930

square

#306D99 #913099 #995C30 #389930

split-complementary

#306D99 #993038 #999130

monochromatic

#132B3C #214C6A #306D99 #428EC4 #71AAD2

Accessibility & contrast

On white

5.57

#306D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#306D99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306D99

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306D99	#FFFFFF	#000000	##FFFFFF
##306D99	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#596E9B

Deuteranopia (green-blind)

#4B6498

Tritanopia (blue-blind)

#00787C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #306d99;
/* rgb */ color: rgb(48, 109, 153);
/* oklch */ color: oklch(51.5% 0.094 243.0);

Tailwind

colors: {
  custom: {
    50: '#7596b7',
    500: '#306d99',
    950: '#000000',
  },
}

SCSS

$custom: #306d99;
$custom-light: #7596b7;
$custom-dark: #000000;

JSON

{
  "hex": "#306d99",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 153
  },
  "hsl": {
    "h": 205.143,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.51499,
    "c": 0.09396,
    "h": 243
  },
  "luminance": 0.13866
}

Semantic roles & 50–950 ramp

primary

#306D99

secondary

#BA8C6B

accent

#884CDC

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #306D99

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

Preview Lab → · Contrast checker → · Palette generator →