#308EB3#308EB3

#308EB3 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.8% C 0.102 H 228.5°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#308EB3
RGB	rgb(48, 142, 179)
HSL	hsl(197, 58%, 45%)
HSV	hsv(197, 73%, 70%)
CMYK	cmyk(73.2%, 20.7%, 0%, 29.8%)
CIE-LAB	lab(55.31, -14.87, -27.26)
CIE-LCH	lch(55.31, 31.05, 241.39°)
OKLab	oklab(60.84% -0.0676 -0.0765)
OKLCH	oklch(60.84% 0.102 228.5)
XYZ	xyz(19.0253, 23.2268, 46.1196)
Luminance	0.2323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308EB3 #B35530

analogous

#30B397 #308EB3 #304CB3

triadic

#308EB3 #B3308E #8EB330

tetradic

#308EB3 #9730B3 #B35530 #4CB330

square

#308EB3 #9730B3 #B35530 #4CB330

split-complementary

#308EB3 #B3304C #B39730

monochromatic

#164152 #236883 #308EB3 #50ACD0 #80C3DD

Accessibility & contrast

On white

3.72

#308EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#308EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308EB3

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308EB3	#FFFFFF	#000000	##000000
##308EB3	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB5

Deuteranopia (green-blind)

#697FB3

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #308eb3;
/* rgb */ color: rgb(48, 142, 179);
/* oklch */ color: oklch(60.8% 0.102 228.5);

Tailwind

colors: {
  custom: {
    50: '#7aafca',
    500: '#308eb3',
    950: '#000000',
  },
}

SCSS

$custom: #308eb3;
$custom-light: #7aafca;
$custom-dark: #000000;

JSON

{
  "hex": "#308eb3",
  "rgb": {
    "r": 48,
    "g": 142,
    "b": 179
  },
  "hsl": {
    "h": 196.947,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.60839,
    "c": 0.10207,
    "h": 228.5
  },
  "luminance": 0.23229
}

Semantic roles & 50–950 ramp

primary

#308EB3

secondary

#C68F79

accent

#7247E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #308EB3

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

Preview Lab → · Contrast checker → · Palette generator →