#309DBC#309DBC

#309DBC is a light, moderate cyan. Relative luminance 0.284; OKLCH L 64.9% C 0.105 H 221.2°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#309DBC
RGB	rgb(48, 157, 188)
HSL	hsl(193, 59%, 46%)
HSV	hsv(193, 74%, 74%)
CMYK	cmyk(74.5%, 16.5%, 0%, 26.3%)
CIE-LAB	lab(60.22, -19.93, -24.78)
CIE-LCH	lch(60.22, 31.80, 231.19°)
OKLab	oklab(64.9% -0.0791 -0.0693)
OKLCH	oklch(64.9% 0.105 221.2)
XYZ	xyz(22.3492, 28.3705, 51.8654)
Luminance	0.2837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DBC #BC4F30

analogous

#30BC95 #309DBC #3057BC

triadic

#309DBC #BC309D #9DBC30

tetradic

#309DBC #9530BC #BC4F30 #57BC30

square

#309DBC #9530BC #BC4F30 #57BC30

split-complementary

#309DBC #BC3057 #BC9530

monochromatic

#174C5A #24748B #309DBC #55B8D4 #86CCE0

Accessibility & contrast

On white

3.15

#309DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#309DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DBC

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DBC	#FFFFFF	#000000	##000000
##309DBC	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BE

Deuteranopia (green-blind)

#788BBC

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #309dbc;
/* rgb */ color: rgb(48, 157, 188);
/* oklch */ color: oklch(64.9% 0.105 221.2);

Tailwind

colors: {
  custom: {
    50: '#7dbad0',
    500: '#309dbc',
    950: '#000000',
  },
}

SCSS

$custom: #309dbc;
$custom-light: #7dbad0;
$custom-dark: #000000;

JSON

{
  "hex": "#309dbc",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 188
  },
  "hsl": {
    "h": 193.286,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.64897,
    "c": 0.10516,
    "h": 221.2
  },
  "luminance": 0.28373
}

Semantic roles & 50–950 ramp

primary

#309DBC

secondary

#CA8F7E

accent

#6845E3

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #309DBC

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

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