#307CBF#307CBF

#307CBF is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.127 H 248.7°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#307CBF
RGB	rgb(48, 124, 191)
HSL	hsl(208, 60%, 47%)
HSV	hsv(208, 75%, 75%)
CMYK	cmyk(74.9%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(50.46, -0.24, -41.72)
CIE-LCH	lch(50.46, 41.72, 269.67°)
OKLab	oklab(57.18% -0.0462 -0.1186)
OKLCH	oklch(57.18% 0.127 248.7)
XYZ	xyz(17.8270, 18.8032, 51.9700)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CBF #BF7330

analogous

#30BFBB #307CBF #3034BF

triadic

#307CBF #BF307C #7CBF30

tetradic

#307CBF #BB30BF #BF7330 #34BF30

square

#307CBF #BB30BF #BF7330 #34BF30

split-complementary

#307CBF #BF3034 #BFBB30

monochromatic

#173C5D #245C8E #307CBF #579AD5 #88B7E1

Accessibility & contrast

On white

4.41

#307CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#307CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CBF

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CBF	#FFFFFF	#000000	##000000
##307CBF	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7FC2

Deuteranopia (green-blind)

#4872BE

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307cbf;
/* rgb */ color: rgb(48, 124, 191);
/* oklch */ color: oklch(57.2% 0.127 248.7);

Tailwind

colors: {
  custom: {
    50: '#7ca1d2',
    500: '#307cbf',
    950: '#000000',
  },
}

SCSS

$custom: #307cbf;
$custom-light: #7ca1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#307cbf",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 208.112,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57178,
    "c": 0.1273,
    "h": 248.7
  },
  "luminance": 0.18805
}

Semantic roles & 50–950 ramp

primary

#307CBF

secondary

#CBA380

accent

#8F45E3

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #307CBF

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

Preview Lab → · Contrast checker → · Palette generator →