#307B9E#307B9E

#307B9E is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.091 H 232.1°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#307B9E
RGB	rgb(48, 123, 158)
HSL	hsl(199, 53%, 40%)
HSV	hsv(199, 70%, 62%)
CMYK	cmyk(69.6%, 22.2%, 0%, 38%)
CIE-LAB	lab(48.59, -11.41, -25.53)
CIE-LCH	lch(48.59, 27.96, 245.92°)
OKLab	oklab(55.18% -0.0558 -0.0716)
OKLCH	oklch(55.18% 0.091 232.1)
XYZ	xyz(14.4710, 17.2613, 34.9102)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307B9E #9E5330

analogous

#309E8A #307B9E #30449E

triadic

#307B9E #9E307B #7B9E30

tetradic

#307B9E #8A309E #9E5330 #449E30

square

#307B9E #8A309E #9E5330 #449E30

split-complementary

#307B9E #9E3044 #9E8A30

monochromatic

#133240 #22566F #307B9E #459DC6 #74B6D5

Accessibility & contrast

On white

4.72

#307B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#307B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #307B9E

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307B9E	#FFFFFF	#000000	##FFFFFF
##307B9E	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA0

Deuteranopia (green-blind)

#5A6F9D

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #307b9e;
/* rgb */ color: rgb(48, 123, 158);
/* oklch */ color: oklch(55.2% 0.091 232.1);

Tailwind

colors: {
  custom: {
    50: '#76a1ba',
    500: '#307b9e',
    950: '#000000',
  },
}

SCSS

$custom: #307b9e;
$custom-light: #76a1ba;
$custom-dark: #000000;

JSON

{
  "hex": "#307b9e",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 158
  },
  "hsl": {
    "h": 199.091,
    "s": 53.398,
    "l": 40.392
  },
  "oklch": {
    "l": 0.55185,
    "c": 0.09082,
    "h": 232.1
  },
  "luminance": 0.17263
}

Semantic roles & 50–950 ramp

primary

#307B9E

secondary

#BD866D

accent

#794BDD

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #307B9E

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

Preview Lab → · Contrast checker → · Palette generator →