#307A9D#307A9D

#307A9D is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.9% C 0.090 H 232.4°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#307A9D
RGB	rgb(48, 122, 157)
HSL	hsl(199, 53%, 40%)
HSV	hsv(199, 69%, 62%)
CMYK	cmyk(69.4%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(48.24, -11.18, -25.49)
CIE-LCH	lch(48.24, 27.83, 246.32°)
OKLab	oklab(54.89% -0.0551 -0.0715)
OKLCH	oklch(54.89% 0.09 232.4)
XYZ	xyz(14.2619, 16.9802, 34.4176)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307A9D #9D5330

analogous

#309D89 #307A9D #30439D

triadic

#307A9D #9D307A #7A9D30

tetradic

#307A9D #89309D #9D5330 #439D30

square

#307A9D #89309D #9D5330 #439D30

split-complementary

#307A9D #9D3043 #9D8930

monochromatic

#13313F #22566E #307A9D #449CC6 #73B5D4

Accessibility & contrast

On white

4.78

#307A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#307A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #307A9D

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307A9D	#FFFFFF	#000000	##FFFFFF
##307A9D	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69799F

Deuteranopia (green-blind)

#5A6E9C

Tritanopia (blue-blind)

#008386

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #307a9d;
/* rgb */ color: rgb(48, 122, 157);
/* oklch */ color: oklch(54.9% 0.090 232.4);

Tailwind

colors: {
  custom: {
    50: '#76a0ba',
    500: '#307a9d',
    950: '#000000',
  },
}

SCSS

$custom: #307a9d;
$custom-light: #76a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#307a9d",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 199.266,
    "s": 53.171,
    "l": 40.196
  },
  "oklch": {
    "l": 0.5489,
    "c": 0.09031,
    "h": 232.4
  },
  "luminance": 0.16982
}

Semantic roles & 50–950 ramp

primary

#307A9D

secondary

#BC866D

accent

#7A4BDD

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #307A9D

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

Preview Lab → · Contrast checker → · Palette generator →