#308DB3#308DB3

#308DB3 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.6% C 0.102 H 229.4°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#308DB3
RGB	rgb(48, 141, 179)
HSL	hsl(197, 58%, 45%)
HSV	hsv(197, 73%, 70%)
CMYK	cmyk(73.2%, 21.2%, 0%, 29.8%)
CIE-LAB	lab(55.00, -14.32, -27.73)
CIE-LCH	lch(55.00, 31.21, 242.70°)
OKLab	oklab(60.6% -0.0666 -0.0778)
OKLCH	oklch(60.6% 0.102 229.4)
XYZ	xyz(18.8772, 22.9306, 46.0702)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308DB3 #B35630

analogous

#30B398 #308DB3 #304BB3

triadic

#308DB3 #B3308D #8DB330

tetradic

#308DB3 #9830B3 #B35630 #4BB330

square

#308DB3 #9830B3 #B35630 #4BB330

split-complementary

#308DB3 #B3304B #B39830

monochromatic

#164152 #236783 #308DB3 #50ABD0 #80C2DD

Accessibility & contrast

On white

3.76

#308DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#308DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308DB3

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308DB3	#FFFFFF	#000000	##000000
##308DB3	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798BB5

Deuteranopia (green-blind)

#687EB2

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #308db3;
/* rgb */ color: rgb(48, 141, 179);
/* oklch */ color: oklch(60.6% 0.102 229.4);

Tailwind

colors: {
  custom: {
    50: '#7aaeca',
    500: '#308db3',
    950: '#000000',
  },
}

SCSS

$custom: #308db3;
$custom-light: #7aaeca;
$custom-dark: #000000;

JSON

{
  "hex": "#308db3",
  "rgb": {
    "r": 48,
    "g": 141,
    "b": 179
  },
  "hsl": {
    "h": 197.405,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.60596,
    "c": 0.10244,
    "h": 229.4
  },
  "luminance": 0.22933
}

Semantic roles & 50–950 ramp

primary

#308DB3

secondary

#C68F79

accent

#7447E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #308DB3

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

Preview Lab → · Contrast checker → · Palette generator →