#308CB3#308CB3

#308CB3 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.4% C 0.103 H 230.4°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#308CB3
RGB	rgb(48, 140, 179)
HSL	hsl(198, 58%, 45%)
HSV	hsv(198, 73%, 70%)
CMYK	cmyk(73.2%, 21.8%, 0%, 29.8%)
CIE-LAB	lab(54.70, -13.76, -28.20)
CIE-LCH	lch(54.70, 31.38, 243.99°)
OKLab	oklab(60.35% -0.0656 -0.0792)
OKLCH	oklch(60.35% 0.103 230.4)
XYZ	xyz(18.7304, 22.6371, 46.0213)
Luminance	0.2264 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308CB3 #B35730

analogous

#30B399 #308CB3 #304AB3

triadic

#308CB3 #B3308C #8CB330

tetradic

#308CB3 #9930B3 #B35730 #4AB330

square

#308CB3 #9930B3 #B35730 #4AB330

split-complementary

#308CB3 #B3304A #B39930

monochromatic

#164152 #236683 #308CB3 #50AAD0 #80C1DD

Accessibility & contrast

On white

3.80

#308CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#308CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308CB3

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308CB3	#FFFFFF	#000000	##000000
##308CB3	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788AB5

Deuteranopia (green-blind)

#667DB2

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #308cb3;
/* rgb */ color: rgb(48, 140, 179);
/* oklch */ color: oklch(60.4% 0.103 230.4);

Tailwind

colors: {
  custom: {
    50: '#7aadca',
    500: '#308cb3',
    950: '#000000',
  },
}

SCSS

$custom: #308cb3;
$custom-light: #7aadca;
$custom-dark: #000000;

JSON

{
  "hex": "#308cb3",
  "rgb": {
    "r": 48,
    "g": 140,
    "b": 179
  },
  "hsl": {
    "h": 197.863,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.60353,
    "c": 0.10285,
    "h": 230.4
  },
  "luminance": 0.22639
}

Semantic roles & 50–950 ramp

primary

#308CB3

secondary

#C69079

accent

#7547E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #308CB3

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

Preview Lab → · Contrast checker → · Palette generator →