#307AC5#307AC5

#307AC5 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.1% C 0.137 H 251.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#307AC5
RGB	rgb(48, 122, 197)
HSL	hsl(210, 61%, 48%)
HSV	hsv(210, 76%, 77%)
CMYK	cmyk(75.6%, 38.1%, 0%, 22.7%)
CIE-LAB	lab(50.19, 3.18, -45.58)
CIE-LCH	lch(50.19, 45.69, 273.99°)
OKLab	oklab(57.07% -0.0428 -0.13)
OKLCH	oklch(57.07% 0.137 251.8)
XYZ	xyz(18.2527, 18.5766, 55.4361)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AC5 #C57B30

analogous

#30C4C5 #307AC5 #3030C5

triadic

#307AC5 #C5307A #7AC530

tetradic

#307AC5 #C530C4 #C57B30 #30C530

square

#307AC5 #C530C4 #C57B30 #30C530

split-complementary

#307AC5 #C53030 #C4C530

monochromatic

#183D63 #245C94 #307AC5 #5B99D7 #8CB7E3

Accessibility & contrast

On white

4.45

#307AC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#307AC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AC5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AC5	#FFFFFF	#000000	##000000
##307AC5	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577FC8

Deuteranopia (green-blind)

#4071C4

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307ac5;
/* rgb */ color: rgb(48, 122, 197);
/* oklch */ color: oklch(57.1% 0.137 251.8);

Tailwind

colors: {
  custom: {
    50: '#7da0d7',
    500: '#307ac5',
    950: '#000000',
  },
}

SCSS

$custom: #307ac5;
$custom-light: #7da0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#307ac5",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 197
  },
  "hsl": {
    "h": 210.201,
    "s": 60.816,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57072,
    "c": 0.13684,
    "h": 251.8
  },
  "luminance": 0.18579
}

Semantic roles & 50–950 ramp

primary

#307AC5

secondary

#CDA984

accent

#9444E4

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #307AC5

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

Preview Lab → · Contrast checker → · Palette generator →