#4090CF#4090CF

#4090CF is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.2% C 0.123 H 245.4°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#4090CF
RGB	rgb(64, 144, 207)
HSL	hsl(206, 60%, 53%)
HSV	hsv(206, 69%, 81%)
CMYK	cmyk(69.1%, 30.4%, 0%, 18.8%)
CIE-LAB	lab(57.60, -4.10, -39.52)
CIE-LCH	lch(57.60, 39.73, 264.08°)
OKLab	oklab(63.2% -0.0512 -0.1118)
OKLCH	oklch(63.2% 0.123 245.4)
XYZ	xyz(23.3458, 25.5390, 62.7185)
Luminance	0.2554 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090CF #CF7F40

analogous

#40CFC7 #4090CF #4048CF

triadic

#4090CF #CF4090 #90CF40

tetradic

#4090CF #C740CF #CF7F40 #48CF40

square

#4090CF #C740CF #CF7F40 #48CF40

split-complementary

#4090CF #CF4048 #CFC740

monochromatic

#1E5077 #2A70A8 #4090CF #71ACDB #A2C9E8

Accessibility & contrast

On white

3.44

#4090CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#4090CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090CF

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090CF	#FFFFFF	#000000	##000000
##4090CF	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7492D2

Deuteranopia (green-blind)

#6084CE

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4090cf;
/* rgb */ color: rgb(64, 144, 207);
/* oklch */ color: oklch(63.2% 0.123 245.4);

Tailwind

colors: {
  custom: {
    50: '#85b0de',
    500: '#4090cf',
    950: '#000000',
  },
}

SCSS

$custom: #4090cf;
$custom-light: #85b0de;
$custom-dark: #000000;

JSON

{
  "hex": "#4090cf",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 206.434,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.63196,
    "c": 0.12295,
    "h": 245.4
  },
  "luminance": 0.25542
}

Semantic roles & 50–950 ramp

primary

#4090CF

secondary

#D4B297

accent

#8A45E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4090CF

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

Preview Lab → · Contrast checker → · Palette generator →