#307BB2#307BB2

#307BB2 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.112 H 244.1°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#307BB2
RGB	rgb(48, 123, 178)
HSL	hsl(205, 58%, 44%)
HSV	hsv(205, 73%, 70%)
CMYK	cmyk(73%, 30.9%, 0%, 30.2%)
CIE-LAB	lab(49.50, -4.36, -35.73)
CIE-LCH	lch(49.50, 36.00, 263.05°)
OKLab	oklab(56.21% -0.049 -0.1012)
OKLCH	oklch(56.21% 0.112 244.1)
XYZ	xyz(16.3347, 18.0068, 44.7256)
Luminance	0.1801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BB2 #B26730

analogous

#30B2A8 #307BB2 #303AB2

triadic

#307BB2 #B2307B #7BB230

tetradic

#307BB2 #A830B2 #B26730 #3AB230

square

#307BB2 #A830B2 #B26730 #3AB230

split-complementary

#307BB2 #B2303A #B2A830

monochromatic

#163852 #235A82 #307BB2 #5099D0 #80B5DD

Accessibility & contrast

On white

4.56

#307BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#307BB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BB2

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BB2	#FFFFFF	#000000	##000000
##307BB2	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB4

Deuteranopia (green-blind)

#5070B1

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307bb2;
/* rgb */ color: rgb(48, 123, 178);
/* oklch */ color: oklch(56.2% 0.112 244.1);

Tailwind

colors: {
  custom: {
    50: '#79a1c9',
    500: '#307bb2',
    950: '#000000',
  },
}

SCSS

$custom: #307bb2;
$custom-light: #79a1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#307bb2",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 178
  },
  "hsl": {
    "h": 205.385,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56214,
    "c": 0.11242,
    "h": 244.1
  },
  "luminance": 0.18009
}

Semantic roles & 50–950 ramp

primary

#307BB2

secondary

#C69978

accent

#8847E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307BB2

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

Preview Lab → · Contrast checker → · Palette generator →