#3690CD#3690CD

#3690CD is a light, vivid cyan. Relative luminance 0.251; OKLCH L 62.8% C 0.125 H 242.4°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#3690CD
RGB	rgb(54, 144, 205)
HSL	hsl(204, 60%, 51%)
HSV	hsv(204, 74%, 80%)
CMYK	cmyk(73.7%, 29.8%, 0%, 19.6%)
CIE-LAB	lab(57.21, -6.20, -39.02)
CIE-LCH	lch(57.21, 39.51, 260.97°)
OKLab	oklab(62.77% -0.0576 -0.1104)
OKLCH	oklch(62.77% 0.125 242.4)
XYZ	xyz(22.5098, 25.1360, 61.4112)
Luminance	0.2514 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3690CD #CD7336

analogous

#36CDBE #3690CD #3645CD

triadic

#3690CD #CD3690 #90CD36

tetradic

#3690CD #BE36CD #CD7336 #45CD36

square

#3690CD #BE36CD #CD7336 #45CD36

split-complementary

#3690CD #CD3645 #CDBE36

monochromatic

#1B4C6D #276E9E #3690CD #67ABD9 #98C6E5

Accessibility & contrast

On white

3.48

#3690CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#3690CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3690CD

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3690CD	#FFFFFF	#000000	##000000
##3690CD	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7491D0

Deuteranopia (green-blind)

#5F83CC

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3690cd;
/* rgb */ color: rgb(54, 144, 205);
/* oklch */ color: oklch(62.8% 0.125 242.4);

Tailwind

colors: {
  custom: {
    50: '#81b0dc',
    500: '#3690cd',
    950: '#000000',
  },
}

SCSS

$custom: #3690cd;
$custom-light: #81b0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3690cd",
  "rgb": {
    "r": 54,
    "g": 144,
    "b": 205
  },
  "hsl": {
    "h": 204.238,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.62774,
    "c": 0.12456,
    "h": 242.4
  },
  "luminance": 0.25139
}

Semantic roles & 50–950 ramp

primary

#3690CD

secondary

#D1A98E

accent

#8544E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3690CD

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

Preview Lab → · Contrast checker → · Palette generator →