#307CB2#307CB2

#307CB2 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.5% C 0.112 H 243.4°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#307CB2
RGB	rgb(48, 124, 178)
HSL	hsl(205, 58%, 44%)
HSV	hsv(205, 73%, 70%)
CMYK	cmyk(73%, 30.3%, 0%, 30.2%)
CIE-LAB	lab(49.81, -4.95, -35.26)
CIE-LCH	lch(49.81, 35.61, 262.01°)
OKLab	oklab(56.45% -0.05 -0.0998)
OKLCH	oklch(56.45% 0.112 243.4)
XYZ	xyz(16.4594, 18.2562, 44.7672)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CB2 #B26630

analogous

#30B2A7 #307CB2 #303BB2

triadic

#307CB2 #B2307C #7CB230

tetradic

#307CB2 #A730B2 #B26630 #3BB230

square

#307CB2 #A730B2 #B26630 #3BB230

split-complementary

#307CB2 #B2303B #B2A730

monochromatic

#163952 #235A82 #307CB2 #509AD0 #80B6DD

Accessibility & contrast

On white

4.51

#307CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#307CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CB2

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CB2	#FFFFFF	#000000	##000000
##307CB2	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637DB4

Deuteranopia (green-blind)

#5171B1

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307cb2;
/* rgb */ color: rgb(48, 124, 178);
/* oklch */ color: oklch(56.5% 0.112 243.4);

Tailwind

colors: {
  custom: {
    50: '#79a1c9',
    500: '#307cb2',
    950: '#000000',
  },
}

SCSS

$custom: #307cb2;
$custom-light: #79a1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#307cb2",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 178
  },
  "hsl": {
    "h": 204.923,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56452,
    "c": 0.11162,
    "h": 243.4
  },
  "luminance": 0.18258
}

Semantic roles & 50–950 ramp

primary

#307CB2

secondary

#C69878

accent

#8747E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #307CB2

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

Preview Lab → · Contrast checker → · Palette generator →