#307BC8#307BC8

#307BC8 is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.5% C 0.140 H 252.1°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#307BC8
RGB	rgb(48, 123, 200)
HSL	hsl(210, 61%, 49%)
HSV	hsv(210, 76%, 78%)
CMYK	cmyk(76%, 38.5%, 0%, 21.6%)
CIE-LAB	lab(50.64, 3.67, -46.57)
CIE-LCH	lch(50.64, 46.72, 274.51°)
OKLab	oklab(57.48% -0.043 -0.1329)
OKLCH	oklch(57.48% 0.14 252.1)
XYZ	xyz(18.7233, 18.9623, 57.3057)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BC8 #C87D30

analogous

#30C7C8 #307BC8 #3130C8

triadic

#307BC8 #C8307B #7BC830

tetradic

#307BC8 #C830C7 #C87D30 #30C831

square

#307BC8 #C830C7 #C87D30 #30C831

split-complementary

#307BC8 #C83130 #C7C830

monochromatic

#183E65 #245D97 #307BC8 #5D9AD8 #8EB9E4

Accessibility & contrast

On white

4.38

#307BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#307BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BC8

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BC8	#FFFFFF	#000000	##000000
##307BC8	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5780CB

Deuteranopia (green-blind)

#3F72C6

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307bc8;
/* rgb */ color: rgb(48, 123, 200);
/* oklch */ color: oklch(57.5% 0.140 252.1);

Tailwind

colors: {
  custom: {
    50: '#7da0d9',
    500: '#307bc8',
    950: '#000000',
  },
}

SCSS

$custom: #307bc8;
$custom-light: #7da0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#307bc8",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 200
  },
  "hsl": {
    "h": 210.395,
    "s": 61.29,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57481,
    "c": 0.13963,
    "h": 252.1
  },
  "luminance": 0.18964
}

Semantic roles & 50–950 ramp

primary

#307BC8

secondary

#CEAA85

accent

#9543E4

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #307BC8

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

Preview Lab → · Contrast checker → · Palette generator →