#307DB9#307DB9

#307DB9 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.119 H 245.8°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#307DB9
RGB	rgb(48, 125, 185)
HSL	hsl(206, 59%, 46%)
HSV	hsv(206, 74%, 73%)
CMYK	cmyk(74.1%, 32.4%, 0%, 27.5%)
CIE-LAB	lab(50.45, -3.02, -38.29)
CIE-LCH	lch(50.45, 38.41, 265.49°)
OKLab	oklab(57.07% -0.0489 -0.1086)
OKLCH	oklch(57.07% 0.119 245.8)
XYZ	xyz(17.3061, 18.7964, 48.6055)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DB9 #B96C30

analogous

#30B9B0 #307DB9 #3039B9

triadic

#307DB9 #B9307D #7DB930

tetradic

#307DB9 #B030B9 #B96C30 #39B930

square

#307DB9 #B030B9 #B96C30 #39B930

split-complementary

#307DB9 #B93039 #B9B030

monochromatic

#173B58 #235C88 #307DB9 #549BD3 #84B7DF

Accessibility & contrast

On white

4.41

#307DB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#307DB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DB9

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DB9	#FFFFFF	#000000	##000000
##307DB9	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627FBC

Deuteranopia (green-blind)

#4E72B8

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307db9;
/* rgb */ color: rgb(48, 125, 185);
/* oklch */ color: oklch(57.1% 0.119 245.8);

Tailwind

colors: {
  custom: {
    50: '#7aa2ce',
    500: '#307db9',
    950: '#000000',
  },
}

SCSS

$custom: #307db9;
$custom-light: #7aa2ce;
$custom-dark: #000000;

JSON

{
  "hex": "#307db9",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 185
  },
  "hsl": {
    "h": 206.277,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57072,
    "c": 0.11907,
    "h": 245.8
  },
  "luminance": 0.18798
}

Semantic roles & 50–950 ramp

primary

#307DB9

secondary

#C99E7C

accent

#8A46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #307DB9

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

Preview Lab → · Contrast checker → · Palette generator →