#307B9C#307B9C

#307B9C is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.1% C 0.089 H 230.5°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#307B9C
RGB	rgb(48, 123, 156)
HSL	hsl(198, 53%, 40%)
HSV	hsv(198, 69%, 61%)
CMYK	cmyk(69.2%, 21.2%, 0%, 38.8%)
CIE-LAB	lab(48.50, -12.09, -24.49)
CIE-LCH	lch(48.50, 27.31, 243.72°)
OKLab	oklab(55.09% -0.0566 -0.0686)
OKLCH	oklch(55.09% 0.089 230.5)
XYZ	xyz(14.3002, 17.1930, 34.0110)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307B9C #9C5130

analogous

#309C87 #307B9C #30459C

triadic

#307B9C #9C307B #7B9C30

tetradic

#307B9C #87309C #9C5130 #459C30

square

#307B9C #87309C #9C5130 #459C30

split-complementary

#307B9C #9C3045 #9C8730

monochromatic

#13313E #22566D #307B9C #449EC5 #73B6D4

Accessibility & contrast

On white

4.73

#307B9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#307B9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #307B9C

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307B9C	#FFFFFF	#000000	##FFFFFF
##307B9C	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A799E

Deuteranopia (green-blind)

#5B6E9C

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #307b9c;
/* rgb */ color: rgb(48, 123, 156);
/* oklch */ color: oklch(55.1% 0.089 230.5);

Tailwind

colors: {
  custom: {
    50: '#76a1b9',
    500: '#307b9c',
    950: '#000000',
  },
}

SCSS

$custom: #307b9c;
$custom-light: #76a1b9;
$custom-dark: #000000;

JSON

{
  "hex": "#307b9c",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 156
  },
  "hsl": {
    "h": 198.333,
    "s": 52.941,
    "l": 40
  },
  "oklch": {
    "l": 0.55089,
    "c": 0.08896,
    "h": 230.5
  },
  "luminance": 0.17195
}

Semantic roles & 50–950 ramp

primary

#307B9C

secondary

#BC846C

accent

#784BDC

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #307B9C

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

Preview Lab → · Contrast checker → · Palette generator →