#247BD9#247BD9

#247BD9 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.2% C 0.165 H 254.1°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#247BD9
RGB	rgb(36, 123, 217)
HSL	hsl(211, 72%, 50%)
HSV	hsv(211, 83%, 85%)
CMYK	cmyk(83.4%, 43.3%, 0%, 14.9%)
CIE-LAB	lab(51.32, 8.84, -55.16)
CIE-LCH	lch(51.32, 55.86, 279.10°)
OKLab	oklab(58.24% -0.0451 -0.1582)
OKLCH	oklch(58.24% 0.165 254.1)
XYZ	xyz(20.3302, 19.5482, 68.3339)
Luminance	0.1955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247BD9 #D98224

analogous

#24D6D9 #247BD9 #2724D9

triadic

#247BD9 #D9247B #7BD924

tetradic

#247BD9 #D924D6 #D98224 #24D927

square

#247BD9 #D924D6 #D98224 #24D927

split-complementary

#247BD9 #D92724 #D6D924

monochromatic

#133F70 #1B5DA5 #247BD9 #579AE3 #8CBAEC

Accessibility & contrast

On white

4.28

#247BD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#247BD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #247BD9

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247BD9	#FFFFFF	#000000	##000000
##247BD9	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A83DD

Deuteranopia (green-blind)

#2573D7

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #247bd9;
/* rgb */ color: rgb(36, 123, 217);
/* oklch */ color: oklch(58.2% 0.165 254.1);

Tailwind

colors: {
  custom: {
    50: '#7da0e5',
    500: '#247bd9',
    950: '#000000',
  },
}

SCSS

$custom: #247bd9;
$custom-light: #7da0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#247bd9",
  "rgb": {
    "r": 36,
    "g": 123,
    "b": 217
  },
  "hsl": {
    "h": 211.16,
    "s": 71.542,
    "l": 49.608
  },
  "oklch": {
    "l": 0.58242,
    "c": 0.16452,
    "h": 254.1
  },
  "luminance": 0.19551
}

Semantic roles & 50–950 ramp

primary

#247BD9

secondary

#D6AE83

accent

#973AEE

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #247BD9

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

Preview Lab → · Contrast checker → · Palette generator →