#4289C7#4289C7

#4289C7 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.2% C 0.118 H 247.5°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4289C7
RGB	rgb(66, 137, 199)
HSL	hsl(208, 54%, 52%)
HSV	hsv(208, 67%, 78%)
CMYK	cmyk(66.8%, 31.2%, 0%, 22%)
CIE-LAB	lab(55.25, -2.46, -38.69)
CIE-LCH	lch(55.25, 38.77, 266.36°)
OKLab	oklab(61.24% -0.0453 -0.1094)
OKLCH	oklch(61.24% 0.118 247.5)
XYZ	xyz(21.4974, 23.1709, 57.3612)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289C7 #C78042

analogous

#42C7C3 #4289C7 #4247C7

triadic

#4289C7 #C74289 #89C742

tetradic

#4289C7 #C342C7 #C78042 #47C742

square

#4289C7 #C342C7 #C78042 #47C742

split-complementary

#4289C7 #C74247 #C7C342

monochromatic

#214A6E #2F6A9D #4289C7 #71A6D5 #A0C4E3

Accessibility & contrast

On white

3.73

#4289C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#4289C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289C7

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289C7	#FFFFFF	#000000	##000000
##4289C7	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E8BCA

Deuteranopia (green-blind)

#5B7FC6

Tritanopia (blue-blind)

#00989F

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4289c7;
/* rgb */ color: rgb(66, 137, 199);
/* oklch */ color: oklch(61.2% 0.118 247.5);

Tailwind

colors: {
  custom: {
    50: '#84abd8',
    500: '#4289c7',
    950: '#000000',
  },
}

SCSS

$custom: #4289c7;
$custom-light: #84abd8;
$custom-dark: #000000;

JSON

{
  "hex": "#4289c7",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 199
  },
  "hsl": {
    "h": 207.97,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.6124,
    "c": 0.11841,
    "h": 247.5
  },
  "luminance": 0.23173
}

Semantic roles & 50–950 ramp

primary

#4289C7

secondary

#D0B095

accent

#8F4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4289C7

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

Preview Lab → · Contrast checker → · Palette generator →