#247B9F#247B9F

#247B9F is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.9% C 0.097 H 230.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#247B9F
RGB	rgb(36, 123, 159)
HSL	hsl(198, 63%, 38%)
HSV	hsv(198, 77%, 62%)
CMYK	cmyk(77.4%, 22.6%, 0%, 37.6%)
CIE-LAB	lab(48.31, -12.74, -26.56)
CIE-LCH	lch(48.31, 29.46, 244.38°)
OKLab	oklab(54.89% -0.0617 -0.0747)
OKLCH	oklch(54.89% 0.097 230.4)
XYZ	xyz(14.0660, 17.0425, 35.3424)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247B9F #9F4824

analogous

#249F85 #247B9F #243D9F

triadic

#247B9F #9F247B #7B9F24

tetradic

#247B9F #85249F #9F4824 #3D9F24

square

#247B9F #85249F #9F4824 #3D9F24

split-complementary

#247B9F #9F243D #9F8524

monochromatic

#0D2E3B #19546D #247B9F #30A1D0 #62B8DB

Accessibility & contrast

On white

4.76

#247B9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#247B9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #247B9F

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247B9F	#FFFFFF	#000000	##FFFFFF
##247B9F	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6979A1

Deuteranopia (green-blind)

#586E9E

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #247b9f;
/* rgb */ color: rgb(36, 123, 159);
/* oklch */ color: oklch(54.9% 0.097 230.4);

Tailwind

colors: {
  custom: {
    50: '#72a1bb',
    500: '#247b9f',
    950: '#000000',
  },
}

SCSS

$custom: #247b9f;
$custom-light: #72a1bb;
$custom-dark: #000000;

JSON

{
  "hex": "#247b9f",
  "rgb": {
    "r": 36,
    "g": 123,
    "b": 159
  },
  "hsl": {
    "h": 197.561,
    "s": 63.077,
    "l": 38.235
  },
  "oklch": {
    "l": 0.54891,
    "c": 0.09692,
    "h": 230.4
  },
  "luminance": 0.17044
}

Semantic roles & 50–950 ramp

primary

#247B9F

secondary

#C17B5E

accent

#7242E6

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #247B9F

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

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