#307FB7#307FB7

#307FB7 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.115 H 243.5°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#307FB7
RGB	rgb(48, 127, 183)
HSL	hsl(205, 58%, 45%)
HSV	hsv(205, 74%, 72%)
CMYK	cmyk(73.8%, 30.6%, 0%, 28.2%)
CIE-LAB	lab(50.95, -4.92, -36.35)
CIE-LCH	lch(50.95, 36.68, 262.28°)
OKLab	oklab(57.44% -0.0514 -0.1029)
OKLCH	oklch(57.44% 0.115 243.5)
XYZ	xyz(17.3522, 19.2240, 47.5867)
Luminance	0.1923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307FB7 #B76830

analogous

#30B7AC #307FB7 #303BB7

triadic

#307FB7 #B7307F #7FB730

tetradic

#307FB7 #AC30B7 #B76830 #3BB730

square

#307FB7 #AC30B7 #B76830 #3BB730

split-complementary

#307FB7 #B7303B #B7AC30

monochromatic

#173C56 #235D87 #307FB7 #529DD2 #83B8DE

Accessibility & contrast

On white

4.33

#307FB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#307FB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307FB7

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307FB7	#FFFFFF	#000000	##000000
##307FB7	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)

#6580B9

Deuteranopia (green-blind)

#5374B6

Tritanopia (blue-blind)

#008D93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307fb7;
/* rgb */ color: rgb(48, 127, 183);
/* oklch */ color: oklch(57.4% 0.115 243.5);

Tailwind

colors: {
  custom: {
    50: '#7aa3cd',
    500: '#307fb7',
    950: '#000000',
  },
}

SCSS

$custom: #307fb7;
$custom-light: #7aa3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#307fb7",
  "rgb": {
    "r": 48,
    "g": 127,
    "b": 183
  },
  "hsl": {
    "h": 204.889,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57435,
    "c": 0.11503,
    "h": 243.5
  },
  "luminance": 0.19226
}

Semantic roles & 50–950 ramp

primary

#307FB7

secondary

#C89B7B

accent

#8746E2

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #307FB7

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

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