#4289C4#4289C4

#4289C4 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 61.1% C 0.115 H 246.3°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#4289C4
RGB	rgb(66, 137, 196)
HSL	hsl(207, 52%, 51%)
HSV	hsv(207, 66%, 77%)
CMYK	cmyk(66.3%, 30.1%, 0%, 23.1%)
CIE-LAB	lab(55.11, -3.49, -37.21)
CIE-LCH	lch(55.11, 37.37, 264.64°)
OKLab	oklab(61.08% -0.0462 -0.1051)
OKLCH	oklch(61.08% 0.115 246.3)
XYZ	xyz(21.1525, 23.0329, 55.5449)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289C4 #C47D42

analogous

#42C4BE #4289C4 #4248C4

triadic

#4289C4 #C44289 #89C442

tetradic

#4289C4 #BE42C4 #C47D42 #48C442

square

#4289C4 #BE42C4 #C47D42 #48C442

split-complementary

#4289C4 #C44248 #C4BE42

monochromatic

#21496A #306999 #4289C4 #71A6D3 #9FC3E1

Accessibility & contrast

On white

3.75

#4289C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#4289C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289C4

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289C4	#FFFFFF	#000000	##000000
##4289C4	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F8BC7

Deuteranopia (green-blind)

#5D7EC3

Tritanopia (blue-blind)

#00979E

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4289c4;
/* rgb */ color: rgb(66, 137, 196);
/* oklch */ color: oklch(61.1% 0.115 246.3);

Tailwind

colors: {
  custom: {
    50: '#84abd6',
    500: '#4289c4',
    950: '#000000',
  },
}

SCSS

$custom: #4289c4;
$custom-light: #84abd6;
$custom-dark: #000000;

JSON

{
  "hex": "#4289c4",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 196
  },
  "hsl": {
    "h": 207.231,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.61082,
    "c": 0.1148,
    "h": 246.3
  },
  "luminance": 0.23035
}

Semantic roles & 50–950 ramp

primary

#4289C4

secondary

#CEAE94

accent

#8D4CDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4289C4

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

Preview Lab → · Contrast checker → · Palette generator →