#247DA4#247DA4

#247DA4 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.6% C 0.101 H 232.0°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#247DA4
RGB	rgb(36, 125, 164)
HSL	hsl(198, 64%, 39%)
HSV	hsv(198, 78%, 64%)
CMYK	cmyk(78%, 23.8%, 0%, 35.7%)
CIE-LAB	lab(49.16, -12.10, -28.17)
CIE-LCH	lch(49.16, 30.66, 246.76°)
OKLab	oklab(55.64% -0.0619 -0.0793)
OKLCH	oklch(55.64% 0.101 232)
XYZ	xyz(14.7593, 17.7209, 37.7574)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#247DA4 #A44B24

analogous

#24A48B #247DA4 #243DA4

triadic

#247DA4 #A4247D #7DA424

tetradic

#247DA4 #8B24A4 #A44B24 #3DA424

square

#247DA4 #8B24A4 #A44B24 #3DA424

split-complementary

#247DA4 #A4243D #A48B24

monochromatic

#0E3140 #195772 #247DA4 #33A2D2 #65B9DD

Accessibility & contrast

On white

4.62

#247DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#247DA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #247DA4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##247DA4	#FFFFFF	#000000	##FFFFFF
##247DA4	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697CA6

Deuteranopia (green-blind)

#586FA3

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #247da4;
/* rgb */ color: rgb(36, 125, 164);
/* oklch */ color: oklch(55.6% 0.101 232.0);

Tailwind

colors: {
  custom: {
    50: '#73a2bf',
    500: '#247da4',
    950: '#000000',
  },
}

SCSS

$custom: #247da4;
$custom-light: #73a2bf;
$custom-dark: #000000;

JSON

{
  "hex": "#247da4",
  "rgb": {
    "r": 36,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 198.281,
    "s": 64,
    "l": 39.216
  },
  "oklch": {
    "l": 0.55636,
    "c": 0.1006,
    "h": 232
  },
  "luminance": 0.17723
}

Semantic roles & 50–950 ramp

primary

#247DA4

secondary

#C37F61

accent

#7341E7

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #247DA4

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

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