#307BC7#307BC7

#307BC7 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.138 H 251.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#307BC7
RGB	rgb(48, 123, 199)
HSL	hsl(210, 61%, 48%)
HSV	hsv(210, 76%, 78%)
CMYK	cmyk(75.9%, 38.2%, 0%, 22%)
CIE-LAB	lab(50.59, 3.30, -46.09)
CIE-LCH	lch(50.59, 46.21, 274.10°)
OKLab	oklab(57.42% -0.0432 -0.1314)
OKLCH	oklch(57.42% 0.138 251.8)
XYZ	xyz(18.6068, 18.9157, 56.6922)
Luminance	0.1892 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BC7 #C77C30

analogous

#30C6C7 #307BC7 #3030C7

triadic

#307BC7 #C7307B #7BC730

tetradic

#307BC7 #C730C6 #C77C30 #30C730

square

#307BC7 #C730C6 #C77C30 #30C730

split-complementary

#307BC7 #C73030 #C6C730

monochromatic

#183E64 #245D96 #307BC7 #5C9AD8 #8EB8E4

Accessibility & contrast

On white

4.39

#307BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#307BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BC7

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BC7	#FFFFFF	#000000	##000000
##307BC7	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5780CA

Deuteranopia (green-blind)

#4072C5

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307bc7;
/* rgb */ color: rgb(48, 123, 199);
/* oklch */ color: oklch(57.4% 0.138 251.8);

Tailwind

colors: {
  custom: {
    50: '#7da0d8',
    500: '#307bc7',
    950: '#000000',
  },
}

SCSS

$custom: #307bc7;
$custom-light: #7da0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#307bc7",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 199
  },
  "hsl": {
    "h": 210.199,
    "s": 61.134,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5742,
    "c": 0.13836,
    "h": 251.8
  },
  "luminance": 0.18918
}

Semantic roles & 50–950 ramp

primary

#307BC7

secondary

#CEAA85

accent

#9444E4

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #307BC7

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

Preview Lab → · Contrast checker → · Palette generator →