#308CB5#308CB5

#308CB5 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.4% C 0.105 H 231.7°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#308CB5
RGB	rgb(48, 140, 181)
HSL	hsl(198, 58%, 45%)
HSV	hsv(198, 73%, 71%)
CMYK	cmyk(73.5%, 22.7%, 0%, 29%)
CIE-LAB	lab(54.78, -13.08, -29.21)
CIE-LCH	lch(54.78, 32.01, 245.89°)
OKLab	oklab(60.45% -0.0649 -0.0821)
OKLCH	oklch(60.45% 0.105 231.7)
XYZ	xyz(18.9341, 22.7185, 47.0943)
Luminance	0.2272 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308CB5 #B55930

analogous

#30B59B #308CB5 #304AB5

triadic

#308CB5 #B5308C #8CB530

tetradic

#308CB5 #9B30B5 #B55930 #4AB530

square

#308CB5 #9B30B5 #B55930 #4AB530

split-complementary

#308CB5 #B5304A #B59B30

monochromatic

#164154 #236785 #308CB5 #51AAD1 #82C1DE

Accessibility & contrast

On white

3.79

#308CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#308CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308CB5

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308CB5	#FFFFFF	#000000	##000000
##308CB5	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB7

Deuteranopia (green-blind)

#657DB4

Tritanopia (blue-blind)

#00979A

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #308cb5;
/* rgb */ color: rgb(48, 140, 181);
/* oklch */ color: oklch(60.4% 0.105 231.7);

Tailwind

colors: {
  custom: {
    50: '#7aadcb',
    500: '#308cb5',
    950: '#000000',
  },
}

SCSS

$custom: #308cb5;
$custom-light: #7aadcb;
$custom-dark: #000000;

JSON

{
  "hex": "#308cb5",
  "rgb": {
    "r": 48,
    "g": 140,
    "b": 181
  },
  "hsl": {
    "h": 198.496,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.60449,
    "c": 0.10465,
    "h": 231.7
  },
  "luminance": 0.22721
}

Semantic roles & 50–950 ramp

primary

#308CB5

secondary

#C7927A

accent

#7646E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #308CB5

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

Preview Lab → · Contrast checker → · Palette generator →