#4298D9#4298D9

#4298D9 is a light, vivid cyan. Relative luminance 0.286; OKLCH L 65.6% C 0.127 H 244.5°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#4298D9
RGB	rgb(66, 152, 217)
HSL	hsl(206, 67%, 55%)
HSV	hsv(206, 70%, 85%)
CMYK	cmyk(69.6%, 30%, 0%, 14.9%)
CIE-LAB	lab(60.45, -4.96, -40.63)
CIE-LCH	lch(60.45, 40.94, 263.04°)
OKLab	oklab(65.61% -0.0548 -0.1149)
OKLCH	oklch(65.61% 0.127 244.5)
XYZ	xyz(25.9946, 28.6216, 69.7867)
Luminance	0.2862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4298D9 #D98342

analogous

#42D9CF #4298D9 #424CD9

triadic

#4298D9 #D94298 #98D942

tetradic

#4298D9 #CF42D9 #D98342 #4CD942

square

#4298D9 #CF42D9 #D98342 #4CD942

split-complementary

#4298D9 #D9424C #D9CF42

monochromatic

#1B5886 #2579B9 #4298D9 #75B4E3 #A8D0ED

Accessibility & contrast

On white

3.12

#4298D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#4298D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4298D9

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4298D9	#FFFFFF	#000000	##000000
##4298D9	1.00	3.12	6.72	6.72
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B9ADC

Deuteranopia (green-blind)

#668BD8

Tritanopia (blue-blind)

#00A8AF

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4298d9;
/* rgb */ color: rgb(66, 152, 217);
/* oklch */ color: oklch(65.6% 0.127 244.5);

Tailwind

colors: {
  custom: {
    50: '#87b6e5',
    500: '#4298d9',
    950: '#000000',
  },
}

SCSS

$custom: #4298d9;
$custom-light: #87b6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4298d9",
  "rgb": {
    "r": 66,
    "g": 152,
    "b": 217
  },
  "hsl": {
    "h": 205.828,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.65615,
    "c": 0.12733,
    "h": 244.5
  },
  "luminance": 0.28624
}

Semantic roles & 50–950 ramp

primary

#4298D9

secondary

#DBB79C

accent

#883EE9

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1115

muted

#7E8084

Preview Lab

Preview with #4298D9

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

Preview Lab → · Contrast checker → · Palette generator →