#307AC9#307AC9

#307AC9 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.3% C 0.142 H 252.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#307AC9
RGB	rgb(48, 122, 201)
HSL	hsl(211, 61%, 49%)
HSV	hsv(211, 76%, 79%)
CMYK	cmyk(76.1%, 39.3%, 0%, 21.2%)
CIE-LAB	lab(50.41, 4.65, -47.52)
CIE-LCH	lch(50.41, 47.75, 275.59°)
OKLab	oklab(57.32% -0.0418 -0.1356)
OKLCH	oklch(57.32% 0.142 252.9)
XYZ	xyz(18.7171, 18.7623, 57.8820)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AC9 #C97F30

analogous

#30C7C9 #307AC9 #3230C9

triadic

#307AC9 #C9307A #7AC930

tetradic

#307AC9 #C930C7 #C97F30 #30C932

square

#307AC9 #C930C7 #C97F30 #30C932

split-complementary

#307AC9 #C93230 #C7C930

monochromatic

#183E66 #245C98 #307AC9 #5E99D8 #8FB8E4

Accessibility & contrast

On white

4.42

#307AC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#307AC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AC9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AC9	#FFFFFF	#000000	##000000
##307AC9	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CC

Deuteranopia (green-blind)

#3C72C7

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307ac9;
/* rgb */ color: rgb(48, 122, 201);
/* oklch */ color: oklch(57.3% 0.142 252.9);

Tailwind

colors: {
  custom: {
    50: '#7e9fda',
    500: '#307ac9',
    950: '#000000',
  },
}

SCSS

$custom: #307ac9;
$custom-light: #7e9fda;
$custom-dark: #000000;

JSON

{
  "hex": "#307ac9",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 201
  },
  "hsl": {
    "h": 210.98,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57315,
    "c": 0.14195,
    "h": 252.9
  },
  "luminance": 0.18764
}

Semantic roles & 50–950 ramp

primary

#307AC9

secondary

#CFAC86

accent

#9743E5

background

#F8F9FD

surface

#EFF2FB

border

#CACCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #307AC9

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

Preview Lab → · Contrast checker → · Palette generator →