#4289AF#4289AF

#4289AF is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.0% C 0.092 H 234.6°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4289AF
RGB	rgb(66, 137, 175)
HSL	hsl(201, 45%, 47%)
HSV	hsv(201, 62%, 69%)
CMYK	cmyk(62.3%, 21.7%, 0%, 31.4%)
CIE-LAB	lab(54.18, -10.51, -26.67)
CIE-LCH	lch(54.18, 28.67, 248.49°)
OKLab	oklab(60.04% -0.0531 -0.0747)
OKLCH	oklch(60.04% 0.092 234.6)
XYZ	xyz(18.9273, 22.1428, 43.8257)
Luminance	0.2215 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289AF #AF6842

analogous

#42AF9E #4289AF #4253AF

triadic

#4289AF #AF4289 #89AF42

tetradic

#4289AF #9E42AF #AF6842 #53AF42

square

#4289AF #9E42AF #AF6842 #53AF42

split-complementary

#4289AF #AF4253 #AF9E42

monochromatic

#204356 #316683 #4289AF #68A5C6 #95C0D7

Accessibility & contrast

On white

3.87

#4289AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4289AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289AF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289AF	#FFFFFF	#000000	##000000
##4289AF	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7788B1

Deuteranopia (green-blind)

#687DAE

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4289af;
/* rgb */ color: rgb(66, 137, 175);
/* oklch */ color: oklch(60.0% 0.092 234.6);

Tailwind

colors: {
  custom: {
    50: '#81abc7',
    500: '#4289af',
    950: '#000000',
  },
}

SCSS

$custom: #4289af;
$custom-light: #81abc7;
$custom-dark: #000000;

JSON

{
  "hex": "#4289af",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 175
  },
  "hsl": {
    "h": 200.917,
    "s": 45.228,
    "l": 47.255
  },
  "oklch": {
    "l": 0.60042,
    "c": 0.09165,
    "h": 234.6
  },
  "luminance": 0.22145
}

Semantic roles & 50–950 ramp

primary

#4289AF

secondary

#C29E8A

accent

#8053D5

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4289AF

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

Preview Lab → · Contrast checker → · Palette generator →