#4289C1#4289C1

#4289C1 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.9% C 0.111 H 244.9°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4289C1
RGB	rgb(66, 137, 193)
HSL	hsl(206, 51%, 51%)
HSV	hsv(206, 66%, 76%)
CMYK	cmyk(65.8%, 29%, 0%, 24.3%)
CIE-LAB	lab(54.97, -4.51, -35.72)
CIE-LCH	lch(54.97, 36.01, 262.80°)
OKLab	oklab(60.93% -0.0471 -0.1008)
OKLCH	oklch(60.93% 0.111 244.9)
XYZ	xyz(20.8144, 22.8977, 53.7645)
Luminance	0.2290 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289C1 #C17A42

analogous

#42C1BA #4289C1 #4249C1

triadic

#4289C1 #C14289 #89C142

tetradic

#4289C1 #BA42C1 #C17A42 #49C142

square

#4289C1 #BA42C1 #C17A42 #49C142

split-complementary

#4289C1 #C14249 #C1BA42

monochromatic

#224867 #316995 #4289C1 #70A6D0 #9EC3DF

Accessibility & contrast

On white

3.76

#4289C1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#4289C1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289C1

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289C1	#FFFFFF	#000000	##000000
##4289C1	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708AC3

Deuteranopia (green-blind)

#5F7EC0

Tritanopia (blue-blind)

#00979D

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4289c1;
/* rgb */ color: rgb(66, 137, 193);
/* oklch */ color: oklch(60.9% 0.111 244.9);

Tailwind

colors: {
  custom: {
    50: '#83abd4',
    500: '#4289c1',
    950: '#000000',
  },
}

SCSS

$custom: #4289c1;
$custom-light: #83abd4;
$custom-dark: #000000;

JSON

{
  "hex": "#4289c1",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 193
  },
  "hsl": {
    "h": 206.457,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.60926,
    "c": 0.11126,
    "h": 244.9
  },
  "luminance": 0.229
}

Semantic roles & 50–950 ramp

primary

#4289C1

secondary

#CCAC93

accent

#8C4EDA

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4289C1

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

Preview Lab → · Contrast checker → · Palette generator →