#308FB5#308FB5

#308FB5 is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.2% C 0.103 H 229.0°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#308FB5
RGB	rgb(48, 143, 181)
HSL	hsl(197, 58%, 45%)
HSV	hsv(197, 73%, 71%)
CMYK	cmyk(73.5%, 21%, 0%, 29%)
CIE-LAB	lab(55.69, -14.74, -27.80)
CIE-LCH	lch(55.69, 31.47, 242.07°)
OKLab	oklab(61.18% -0.0679 -0.078)
OKLCH	oklch(61.18% 0.103 229)
XYZ	xyz(19.3785, 23.6072, 47.2424)
Luminance	0.2361 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308FB5 #B55630

analogous

#30B599 #308FB5 #304CB5

triadic

#308FB5 #B5308F #8FB530

tetradic

#308FB5 #9930B5 #B55630 #4CB530

square

#308FB5 #9930B5 #B55630 #4CB530

split-complementary

#308FB5 #B5304C #B59930

monochromatic

#164354 #236985 #308FB5 #51ACD1 #82C3DE

Accessibility & contrast

On white

3.67

#308FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#308FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308FB5

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308FB5	#FFFFFF	#000000	##000000
##308FB5	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8DB7

Deuteranopia (green-blind)

#6980B4

Tritanopia (blue-blind)

#009A9C

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #308fb5;
/* rgb */ color: rgb(48, 143, 181);
/* oklch */ color: oklch(61.2% 0.103 229.0);

Tailwind

colors: {
  custom: {
    50: '#7bafcb',
    500: '#308fb5',
    950: '#000000',
  },
}

SCSS

$custom: #308fb5;
$custom-light: #7bafcb;
$custom-dark: #000000;

JSON

{
  "hex": "#308fb5",
  "rgb": {
    "r": 48,
    "g": 143,
    "b": 181
  },
  "hsl": {
    "h": 197.143,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.61176,
    "c": 0.10341,
    "h": 229
  },
  "luminance": 0.23609
}

Semantic roles & 50–950 ramp

primary

#308FB5

secondary

#C7907A

accent

#7346E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #308FB5

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

Preview Lab → · Contrast checker → · Palette generator →