#307CC9#307CC9

#307CC9 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.140 H 251.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#307CC9
RGB	rgb(48, 124, 201)
HSL	hsl(210, 61%, 49%)
HSV	hsv(210, 76%, 79%)
CMYK	cmyk(76.1%, 38.3%, 0%, 21.2%)
CIE-LAB	lab(50.99, 3.43, -46.60)
CIE-LCH	lch(50.99, 46.72, 274.21°)
OKLab	oklab(57.77% -0.0436 -0.1329)
OKLCH	oklch(57.77% 0.14 251.8)
XYZ	xyz(18.9652, 19.2585, 57.9647)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CC9 #C97D30

analogous

#30C9C9 #307CC9 #3030C9

triadic

#307CC9 #C9307C #7CC930

tetradic

#307CC9 #C930C9 #C97D30 #30C930

square

#307CC9 #C930C9 #C97D30 #30C930

split-complementary

#307CC9 #C93030 #C9C930

monochromatic

#183F66 #245E98 #307CC9 #5E9BD8 #8FB9E4

Accessibility & contrast

On white

4.33

#307CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#307CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CC9

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CC9	#FFFFFF	#000000	##000000
##307CC9	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5881CC

Deuteranopia (green-blind)

#4073C7

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307cc9;
/* rgb */ color: rgb(48, 124, 201);
/* oklch */ color: oklch(57.8% 0.140 251.8);

Tailwind

colors: {
  custom: {
    50: '#7ea1da',
    500: '#307cc9',
    950: '#000000',
  },
}

SCSS

$custom: #307cc9;
$custom-light: #7ea1da;
$custom-dark: #000000;

JSON

{
  "hex": "#307cc9",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 201
  },
  "hsl": {
    "h": 210.196,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57769,
    "c": 0.13987,
    "h": 251.8
  },
  "luminance": 0.19261
}

Semantic roles & 50–950 ramp

primary

#307CC9

secondary

#CFAB86

accent

#9443E5

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #307CC9

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

Preview Lab → · Contrast checker → · Palette generator →