#247DB1#247DB1

#247DB1 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.114 H 239.8°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#247DB1
RGB	rgb(36, 125, 177)
HSL	hsl(202, 66%, 42%)
HSV	hsv(202, 80%, 69%)
CMYK	cmyk(79.7%, 29.4%, 0%, 30.6%)
CIE-LAB	lab(49.76, -7.39, -34.78)
CIE-LCH	lch(49.76, 35.56, 258.01°)
OKLab	oklab(56.31% -0.0574 -0.0985)
OKLCH	oklch(56.31% 0.114 239.8)
XYZ	xyz(15.9938, 18.2147, 44.2593)
Luminance	0.1822 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247DB1 #B15824

analogous

#24B19F #247DB1 #2436B1

triadic

#247DB1 #B1247D #7DB124

tetradic

#247DB1 #9F24B1 #B15824 #36B124

square

#247DB1 #9F24B1 #B15824 #36B124

split-complementary

#247DB1 #B12436 #B19F24

monochromatic

#0F354B #1A597E #247DB1 #3B9ED7 #6EB7E1

Accessibility & contrast

On white

4.52

#247DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#247DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #247DB1

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247DB1	#FFFFFF	#000000	##000000
##247DB1	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB3

Deuteranopia (green-blind)

#5171B0

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #247db1;
/* rgb */ color: rgb(36, 125, 177);
/* oklch */ color: oklch(56.3% 0.114 239.8);

Tailwind

colors: {
  custom: {
    50: '#75a2c8',
    500: '#247db1',
    950: '#000000',
  },
}

SCSS

$custom: #247db1;
$custom-light: #75a2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#247db1",
  "rgb": {
    "r": 36,
    "g": 125,
    "b": 177
  },
  "hsl": {
    "h": 202.128,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.5631,
    "c": 0.11398,
    "h": 239.8
  },
  "luminance": 0.18217
}

Semantic roles & 50–950 ramp

primary

#247DB1

secondary

#C88C69

accent

#7E3FE9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #247DB1

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

Preview Lab → · Contrast checker → · Palette generator →