#247AB1#247AB1

#247AB1 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.116 H 242.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#247AB1
RGB	rgb(36, 122, 177)
HSL	hsl(203, 66%, 42%)
HSV	hsv(203, 80%, 69%)
CMYK	cmyk(79.7%, 31.1%, 0%, 30.6%)
CIE-LAB	lab(48.84, -5.62, -36.22)
CIE-LCH	lch(48.84, 36.65, 261.18°)
OKLab	oklab(55.59% -0.0546 -0.1027)
OKLCH	oklch(55.59% 0.116 242)
XYZ	xyz(15.6198, 17.4666, 44.1346)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247AB1 #B15B24

analogous

#24B1A2 #247AB1 #2434B1

triadic

#247AB1 #B1247A #7AB124

tetradic

#247AB1 #A224B1 #B15B24 #34B124

square

#247AB1 #A224B1 #B15B24 #34B124

split-complementary

#247AB1 #B12434 #B1A224

monochromatic

#0F344B #1A577E #247AB1 #3B9AD7 #6EB4E1

Accessibility & contrast

On white

4.67

#247AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#247AB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #247AB1

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247AB1	#FFFFFF	#000000	##FFFFFF
##247AB1	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607BB3

Deuteranopia (green-blind)

#4D6EB0

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #247ab1;
/* rgb */ color: rgb(36, 122, 177);
/* oklch */ color: oklch(55.6% 0.116 242.0);

Tailwind

colors: {
  custom: {
    50: '#75a0c8',
    500: '#247ab1',
    950: '#000000',
  },
}

SCSS

$custom: #247ab1;
$custom-light: #75a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#247ab1",
  "rgb": {
    "r": 36,
    "g": 122,
    "b": 177
  },
  "hsl": {
    "h": 203.404,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.55587,
    "c": 0.1163,
    "h": 242
  },
  "luminance": 0.17468
}

Semantic roles & 50–950 ramp

primary

#247AB1

secondary

#C88E69

accent

#813FE9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #247AB1

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

Preview Lab → · Contrast checker → · Palette generator →