#4289C8#4289C8

#4289C8 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.3% C 0.120 H 247.9°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#4289C8
RGB	rgb(66, 137, 200)
HSL	hsl(208, 55%, 52%)
HSV	hsv(208, 67%, 78%)
CMYK	cmyk(67%, 31.5%, 0%, 21.6%)
CIE-LAB	lab(55.30, -2.12, -39.18)
CIE-LCH	lch(55.30, 39.24, 266.90°)
OKLab	oklab(61.29% -0.045 -0.1108)
OKLCH	oklch(61.29% 0.12 247.9)
XYZ	xyz(21.6139, 23.2175, 57.9747)
Luminance	0.2322 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289C8 #C88142

analogous

#42C8C4 #4289C8 #4246C8

triadic

#4289C8 #C84289 #89C842

tetradic

#4289C8 #C442C8 #C88142 #46C842

square

#4289C8 #C442C8 #C88142 #46C842

split-complementary

#4289C8 #C84246 #C8C442

monochromatic

#204A6F #2E6A9F #4289C8 #71A7D6 #A1C4E4

Accessibility & contrast

On white

3.72

#4289C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#4289C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289C8

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289C8	#FFFFFF	#000000	##000000
##4289C8	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D8CCB

Deuteranopia (green-blind)

#5B7FC7

Tritanopia (blue-blind)

#00989F

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4289c8;
/* rgb */ color: rgb(66, 137, 200);
/* oklch */ color: oklch(61.3% 0.120 247.9);

Tailwind

colors: {
  custom: {
    50: '#84abd9',
    500: '#4289c8',
    950: '#000000',
  },
}

SCSS

$custom: #4289c8;
$custom-light: #84abd9;
$custom-dark: #000000;

JSON

{
  "hex": "#4289c8",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 200
  },
  "hsl": {
    "h": 208.209,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.61293,
    "c": 0.11963,
    "h": 247.9
  },
  "luminance": 0.2322
}

Semantic roles & 50–950 ramp

primary

#4289C8

secondary

#D0B196

accent

#8F4ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4289C8

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

Preview Lab → · Contrast checker → · Palette generator →