#307BCF#307BCF

#307BCF is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.149 H 253.9°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#307BCF
RGB	rgb(48, 123, 207)
HSL	hsl(212, 62%, 50%)
HSV	hsv(212, 77%, 81%)
CMYK	cmyk(76.8%, 40.6%, 0%, 18.8%)
CIE-LAB	lab(51.03, 6.26, -49.94)
CIE-LCH	lch(51.03, 50.33, 277.15°)
OKLab	oklab(57.91% -0.0413 -0.1427)
OKLCH	oklch(57.91% 0.149 253.9)
XYZ	xyz(19.5602, 19.2970, 61.7132)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BCF #CF8430

analogous

#30CBCF #307BCF #3430CF

triadic

#307BCF #CF307B #7BCF30

tetradic

#307BCF #CF30CB #CF8430 #30CF34

square

#307BCF #CF30CB #CF8430 #30CF34

split-complementary

#307BCF #CF3430 #CBCF30

monochromatic

#19406C #245D9D #307BCF #629BDB #93BAE6

Accessibility & contrast

On white

4.32

#307BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#307BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BCF

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BCF	#FFFFFF	#000000	##000000
##307BCF	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5281D2

Deuteranopia (green-blind)

#3873CD

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #307bcf;
/* rgb */ color: rgb(48, 123, 207);
/* oklch */ color: oklch(57.9% 0.149 253.9);

Tailwind

colors: {
  custom: {
    50: '#7fa0de',
    500: '#307bcf',
    950: '#000000',
  },
}

SCSS

$custom: #307bcf;
$custom-light: #7fa0de;
$custom-dark: #000000;

JSON

{
  "hex": "#307bcf",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 207
  },
  "hsl": {
    "h": 211.698,
    "s": 62.353,
    "l": 50
  },
  "oklch": {
    "l": 0.57912,
    "c": 0.14859,
    "h": 253.9
  },
  "luminance": 0.19299
}

Semantic roles & 50–950 ramp

primary

#307BCF

secondary

#D1AF8A

accent

#9942E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #307BCF

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

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