#247CB1#247CB1

#247CB1 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.1% C 0.115 H 240.5°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#247CB1
RGB	rgb(36, 124, 177)
HSL	hsl(203, 66%, 42%)
HSV	hsv(203, 80%, 69%)
CMYK	cmyk(79.7%, 29.9%, 0%, 30.6%)
CIE-LAB	lab(49.45, -6.80, -35.26)
CIE-LCH	lch(49.45, 35.91, 259.08°)
OKLab	oklab(56.07% -0.0565 -0.0999)
OKLCH	oklch(56.07% 0.115 240.5)
XYZ	xyz(15.8679, 17.9628, 44.2173)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247CB1 #B15924

analogous

#24B1A0 #247CB1 #2436B1

triadic

#247CB1 #B1247C #7CB124

tetradic

#247CB1 #A024B1 #B15924 #36B124

square

#247CB1 #A024B1 #B15924 #36B124

split-complementary

#247CB1 #B12436 #B1A024

monochromatic

#0F354B #1A587E #247CB1 #3B9CD7 #6EB6E1

Accessibility & contrast

On white

4.57

#247CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#247CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #247CB1

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247CB1	#FFFFFF	#000000	##000000
##247CB1	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637DB3

Deuteranopia (green-blind)

#5070B0

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #247cb1;
/* rgb */ color: rgb(36, 124, 177);
/* oklch */ color: oklch(56.1% 0.115 240.5);

Tailwind

colors: {
  custom: {
    50: '#75a1c8',
    500: '#247cb1',
    950: '#000000',
  },
}

SCSS

$custom: #247cb1;
$custom-light: #75a1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#247cb1",
  "rgb": {
    "r": 36,
    "g": 124,
    "b": 177
  },
  "hsl": {
    "h": 202.553,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56069,
    "c": 0.11473,
    "h": 240.5
  },
  "luminance": 0.17965
}

Semantic roles & 50–950 ramp

primary

#247CB1

secondary

#C88D69

accent

#7F3FE9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #247CB1

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

Preview Lab → · Contrast checker → · Palette generator →