#306B8F#306B8F

#306B8F is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.5% C 0.084 H 238.4°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#306B8F
RGB	rgb(48, 107, 143)
HSL	hsl(203, 50%, 37%)
HSV	hsv(203, 66%, 56%)
CMYK	cmyk(66.4%, 25.2%, 0%, 43.9%)
CIE-LAB	lab(42.95, -7.29, -25.41)
CIE-LCH	lch(42.95, 26.43, 253.99°)
OKLab	oklab(50.49% -0.044 -0.0714)
OKLCH	oklch(50.49% 0.084 238.4)
XYZ	xyz(11.4326, 13.1258, 27.9123)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306B8F #8F5430

analogous

#308F84 #306B8F #303B8F

triadic

#306B8F #8F306B #6B8F30

tetradic

#306B8F #84308F #8F5430 #3B8F30

square

#306B8F #84308F #8F5430 #3B8F30

split-complementary

#306B8F #8F303B #8F8430

monochromatic

#112633 #214961 #306B8F #3F8DBD #6CA9CE

Accessibility & contrast

On white

5.79

#306B8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#306B8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306B8F

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306B8F	#FFFFFF	#000000	##FFFFFF
##306B8F	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A6B91

Deuteranopia (green-blind)

#4D618E

Tritanopia (blue-blind)

#007477

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #306b8f;
/* rgb */ color: rgb(48, 107, 143);
/* oklch */ color: oklch(50.5% 0.084 238.4);

Tailwind

colors: {
  custom: {
    50: '#7395b0',
    500: '#306b8f',
    950: '#000000',
  },
}

SCSS

$custom: #306b8f;
$custom-light: #7395b0;
$custom-dark: #000000;

JSON

{
  "hex": "#306b8f",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 143
  },
  "hsl": {
    "h": 202.737,
    "s": 49.738,
    "l": 37.451
  },
  "oklch": {
    "l": 0.50486,
    "c": 0.08385,
    "h": 238.4
  },
  "luminance": 0.13127
}

Semantic roles & 50–950 ramp

primary

#306B8F

secondary

#B58466

accent

#834FD9

background

#F7F9FA

surface

#EDF1F4

border

#C8CBCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #306B8F

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

Preview Lab → · Contrast checker → · Palette generator →