#307DB7#307DB7

#307DB7 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.0% C 0.117 H 244.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#307DB7
RGB	rgb(48, 125, 183)
HSL	hsl(206, 58%, 45%)
HSV	hsv(206, 74%, 72%)
CMYK	cmyk(73.8%, 31.7%, 0%, 28.2%)
CIE-LAB	lab(50.35, -3.74, -37.29)
CIE-LCH	lch(50.35, 37.48, 264.27°)
OKLab	oklab(56.96% -0.0495 -0.1057)
OKLCH	oklch(56.96% 0.117 244.9)
XYZ	xyz(17.0965, 18.7126, 47.5014)
Luminance	0.1872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DB7 #B76A30

analogous

#30B7AE #307DB7 #3039B7

triadic

#307DB7 #B7307D #7DB730

tetradic

#307DB7 #AE30B7 #B76A30 #39B730

square

#307DB7 #AE30B7 #B76A30 #39B730

split-complementary

#307DB7 #B73039 #B7AE30

monochromatic

#173B56 #235C87 #307DB7 #529BD2 #83B7DE

Accessibility & contrast

On white

4.43

#307DB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#307DB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DB7

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DB7	#FFFFFF	#000000	##000000
##307DB7	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627FBA

Deuteranopia (green-blind)

#5072B6

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307db7;
/* rgb */ color: rgb(48, 125, 183);
/* oklch */ color: oklch(57.0% 0.117 244.9);

Tailwind

colors: {
  custom: {
    50: '#7aa2cd',
    500: '#307db7',
    950: '#000000',
  },
}

SCSS

$custom: #307db7;
$custom-light: #7aa2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#307db7",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 183
  },
  "hsl": {
    "h": 205.778,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56962,
    "c": 0.11668,
    "h": 244.9
  },
  "luminance": 0.18715
}

Semantic roles & 50–950 ramp

primary

#307DB7

secondary

#C89C7B

accent

#8946E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #307DB7

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

Preview Lab → · Contrast checker → · Palette generator →