#3690CF#3690CF

#3690CF is a light, vivid cyan. Relative luminance 0.252; OKLCH L 62.9% C 0.127 H 243.3°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3690CF
RGB	rgb(54, 144, 207)
HSL	hsl(205, 61%, 51%)
HSV	hsv(205, 74%, 81%)
CMYK	cmyk(73.9%, 30.4%, 0%, 18.8%)
CIE-LAB	lab(57.30, -5.50, -40.00)
CIE-LCH	lch(57.30, 40.38, 262.17°)
OKLab	oklab(62.88% -0.057 -0.1133)
OKLCH	oklch(62.88% 0.127 243.3)
XYZ	xyz(22.7527, 25.2332, 62.6907)
Luminance	0.2524 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3690CF #CF7536

analogous

#36CFC1 #3690CF #3643CF

triadic

#3690CF #CF3690 #90CF36

tetradic

#3690CF #C136CF #CF7536 #43CF36

square

#3690CF #C136CF #CF7536 #43CF36

split-complementary

#3690CF #CF3643 #CFC136

monochromatic

#1B4D70 #276FA1 #3690CF #67ABDB #99C7E7

Accessibility & contrast

On white

3.47

#3690CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#3690CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3690CF

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3690CF	#FFFFFF	#000000	##000000
##3690CF	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7392D2

Deuteranopia (green-blind)

#5E83CE

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3690cf;
/* rgb */ color: rgb(54, 144, 207);
/* oklch */ color: oklch(62.9% 0.127 243.3);

Tailwind

colors: {
  custom: {
    50: '#81b0de',
    500: '#3690cf',
    950: '#000000',
  },
}

SCSS

$custom: #3690cf;
$custom-light: #81b0de;
$custom-dark: #000000;

JSON

{
  "hex": "#3690cf",
  "rgb": {
    "r": 54,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 204.706,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.6288,
    "c": 0.12682,
    "h": 243.3
  },
  "luminance": 0.25236
}

Semantic roles & 50–950 ramp

primary

#3690CF

secondary

#D2AA8F

accent

#8643E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3690CF

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

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