#307BCC#307BCC

#307BCC is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.145 H 253.1°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#307BCC
RGB	rgb(48, 123, 204)
HSL	hsl(211, 62%, 49%)
HSV	hsv(211, 76%, 80%)
CMYK	cmyk(76.5%, 39.7%, 0%, 20%)
CIE-LAB	lab(50.86, 5.15, -48.50)
CIE-LCH	lch(50.86, 48.78, 276.06°)
OKLab	oklab(57.73% -0.042 -0.1385)
OKLCH	oklch(57.73% 0.145 253.1)
XYZ	xyz(19.1969, 19.1517, 59.7999)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BCC #CC8130

analogous

#30C9CC #307BCC #3330CC

triadic

#307BCC #CC307B #7BCC30

tetradic

#307BCC #CC30C9 #CC8130 #30CC33

square

#307BCC #CC30C9 #CC8130 #30CC33

split-complementary

#307BCC #CC3330 #C9CC30

monochromatic

#193F69 #245D9A #307BCC #609ADA #91BAE5

Accessibility & contrast

On white

4.35

#307BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#307BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BCC

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BCC	#FFFFFF	#000000	##000000
##307BCC	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5481CF

Deuteranopia (green-blind)

#3B73CA

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307bcc;
/* rgb */ color: rgb(48, 123, 204);
/* oklch */ color: oklch(57.7% 0.145 253.1);

Tailwind

colors: {
  custom: {
    50: '#7ea0dc',
    500: '#307bcc',
    950: '#000000',
  },
}

SCSS

$custom: #307bcc;
$custom-light: #7ea0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#307bcc",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 204
  },
  "hsl": {
    "h": 211.154,
    "s": 61.905,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57726,
    "c": 0.14474,
    "h": 253.1
  },
  "luminance": 0.19154
}

Semantic roles & 50–950 ramp

primary

#307BCC

secondary

#D0AD88

accent

#9743E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #307BCC

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

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