#307CB8#307CB8

#307CB8 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.119 H 246.0°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#307CB8
RGB	rgb(48, 124, 184)
HSL	hsl(206, 59%, 45%)
HSV	hsv(206, 74%, 72%)
CMYK	cmyk(73.9%, 32.6%, 0%, 27.8%)
CIE-LAB	lab(50.10, -2.79, -38.26)
CIE-LCH	lch(50.10, 38.36, 265.83°)
OKLab	oklab(56.78% -0.0482 -0.1085)
OKLCH	oklch(56.78% 0.119 246)
XYZ	xyz(17.0750, 18.5024, 48.0095)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CB8 #B86C30

analogous

#30B8B0 #307CB8 #3038B8

triadic

#307CB8 #B8307C #7CB830

tetradic

#307CB8 #B030B8 #B86C30 #38B830

square

#307CB8 #B030B8 #B86C30 #38B830

split-complementary

#307CB8 #B83038 #B8B030

monochromatic

#173B57 #235B87 #307CB8 #539AD2 #84B7DF

Accessibility & contrast

On white

4.47

#307CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#307CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CB8

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CB8	#FFFFFF	#000000	##000000
##307CB8	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617EBB

Deuteranopia (green-blind)

#4D71B7

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307cb8;
/* rgb */ color: rgb(48, 124, 184);
/* oklch */ color: oklch(56.8% 0.119 246.0);

Tailwind

colors: {
  custom: {
    50: '#7aa1cd',
    500: '#307cb8',
    950: '#000000',
  },
}

SCSS

$custom: #307cb8;
$custom-light: #7aa1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#307cb8",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 184
  },
  "hsl": {
    "h": 206.471,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56781,
    "c": 0.11873,
    "h": 246
  },
  "luminance": 0.18504
}

Semantic roles & 50–950 ramp

primary

#307CB8

secondary

#C89D7C

accent

#8B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #307CB8

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

Preview Lab → · Contrast checker → · Palette generator →