#307DC9#307DC9

#307DC9 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.139 H 251.3°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#307DC9
RGB	rgb(48, 125, 201)
HSL	hsl(210, 61%, 49%)
HSV	hsv(210, 76%, 79%)
CMYK	cmyk(76.1%, 37.8%, 0%, 21.2%)
CIE-LAB	lab(51.28, 2.82, -46.13)
CIE-LCH	lch(51.28, 46.22, 273.50°)
OKLab	oklab(58% -0.0445 -0.1315)
OKLCH	oklch(58% 0.139 251.3)
XYZ	xyz(19.0912, 19.5104, 58.0067)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DC9 #C97C30

analogous

#30C9C9 #307DC9 #3030C9

triadic

#307DC9 #C9307D #7DC930

tetradic

#307DC9 #C930C9 #C97C30 #30C930

square

#307DC9 #C930C9 #C97C30 #30C930

split-complementary

#307DC9 #C93030 #C9C930

monochromatic

#184066 #245E98 #307DC9 #5E9CD8 #8FBAE4

Accessibility & contrast

On white

4.28

#307DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#307DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DC9

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DC9	#FFFFFF	#000000	##000000
##307DC9	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5982CC

Deuteranopia (green-blind)

#4274C8

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #307dc9;
/* rgb */ color: rgb(48, 125, 201);
/* oklch */ color: oklch(58.0% 0.139 251.3);

Tailwind

colors: {
  custom: {
    50: '#7ea2da',
    500: '#307dc9',
    950: '#000000',
  },
}

SCSS

$custom: #307dc9;
$custom-light: #7ea2da;
$custom-dark: #000000;

JSON

{
  "hex": "#307dc9",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 201
  },
  "hsl": {
    "h": 209.804,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57996,
    "c": 0.13885,
    "h": 251.3
  },
  "luminance": 0.19513
}

Semantic roles & 50–950 ramp

primary

#307DC9

secondary

#CFAA86

accent

#9343E5

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F15

muted

#7C7E83

Preview Lab

Preview with #307DC9

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

Preview Lab → · Contrast checker → · Palette generator →