#307AD3#307AD3

#307AD3 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.155 H 255.2°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#307AD3
RGB	rgb(48, 122, 211)
HSL	hsl(213, 65%, 51%)
HSV	hsv(213, 77%, 83%)
CMYK	cmyk(77.3%, 42.2%, 0%, 17.3%)
CIE-LAB	lab(50.98, 8.37, -52.30)
CIE-LCH	lch(50.98, 52.97, 279.09°)
OKLab	oklab(57.94% -0.0396 -0.1497)
OKLCH	oklch(57.94% 0.155 255.2)
XYZ	xyz(19.9320, 19.2483, 64.2802)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AD3 #D38930

analogous

#30CBD3 #307AD3 #3730D3

triadic

#307AD3 #D3307A #7AD330

tetradic

#307AD3 #D330CB #D38930 #30D337

square

#307AD3 #D330CB #D38930 #30D337

split-complementary

#307AD3 #D33730 #CBD330

monochromatic

#184071 #235DA3 #307AD3 #629ADE #95BBE8

Accessibility & contrast

On white

4.33

#307AD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#307AD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AD3

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AD3	#FFFFFF	#000000	##000000
##307AD3	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E81D6

Deuteranopia (green-blind)

#3073D1

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307ad3;
/* rgb */ color: rgb(48, 122, 211);
/* oklch */ color: oklch(57.9% 0.155 255.2);

Tailwind

colors: {
  custom: {
    50: '#809fe1',
    500: '#307ad3',
    950: '#000000',
  },
}

SCSS

$custom: #307ad3;
$custom-light: #809fe1;
$custom-dark: #000000;

JSON

{
  "hex": "#307ad3",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 211
  },
  "hsl": {
    "h": 212.761,
    "s": 64.94,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57942,
    "c": 0.15484,
    "h": 255.2
  },
  "luminance": 0.19251
}

Semantic roles & 50–950 ramp

primary

#307AD3

secondary

#D4B38B

accent

#9C40E8

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #307AD3

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

Preview Lab → · Contrast checker → · Palette generator →