#308BB3#308BB3

#308BB3 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.1% C 0.103 H 231.3°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#308BB3
RGB	rgb(48, 139, 179)
HSL	hsl(198, 58%, 45%)
HSV	hsv(198, 73%, 70%)
CMYK	cmyk(73.2%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(54.39, -13.21, -28.68)
CIE-LCH	lch(54.39, 31.57, 245.27°)
OKLab	oklab(60.11% -0.0646 -0.0806)
OKLCH	oklch(60.11% 0.103 231.3)
XYZ	xyz(18.5850, 22.3461, 45.9728)
Luminance	0.2235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308BB3 #B35830

analogous

#30B39A #308BB3 #3049B3

triadic

#308BB3 #B3308B #8BB330

tetradic

#308BB3 #9A30B3 #B35830 #49B330

square

#308BB3 #9A30B3 #B35830 #49B330

split-complementary

#308BB3 #B33049 #B39A30

monochromatic

#164052 #236683 #308BB3 #50A9D0 #80C1DD

Accessibility & contrast

On white

3.84

#308BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#308BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308BB3

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308BB3	#FFFFFF	#000000	##000000
##308BB3	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7789B5

Deuteranopia (green-blind)

#657CB2

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #308bb3;
/* rgb */ color: rgb(48, 139, 179);
/* oklch */ color: oklch(60.1% 0.103 231.3);

Tailwind

colors: {
  custom: {
    50: '#7aacca',
    500: '#308bb3',
    950: '#000000',
  },
}

SCSS

$custom: #308bb3;
$custom-light: #7aacca;
$custom-dark: #000000;

JSON

{
  "hex": "#308bb3",
  "rgb": {
    "r": 48,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 198.321,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.6011,
    "c": 0.10327,
    "h": 231.3
  },
  "luminance": 0.22348
}

Semantic roles & 50–950 ramp

primary

#308BB3

secondary

#C69079

accent

#7647E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #308BB3

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

Preview Lab → · Contrast checker → · Palette generator →