#3691CF#3691CF

#3691CF is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.1% C 0.126 H 242.6°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#3691CF
RGB	rgb(54, 145, 207)
HSL	hsl(204, 61%, 51%)
HSV	hsv(204, 74%, 81%)
CMYK	cmyk(73.9%, 30%, 0%, 18.8%)
CIE-LAB	lab(57.60, -6.07, -39.54)
CIE-LCH	lch(57.60, 40.00, 261.27°)
OKLab	oklab(63.11% -0.058 -0.1119)
OKLCH	oklch(63.11% 0.126 242.6)
XYZ	xyz(22.9048, 25.5374, 62.7414)
Luminance	0.2554 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3691CF #CF7436

analogous

#36CFC1 #3691CF #3644CF

triadic

#3691CF #CF3691 #91CF36

tetradic

#3691CF #C136CF #CF7436 #44CF36

square

#3691CF #C136CF #CF7436 #44CF36

split-complementary

#3691CF #CF3644 #CFC136

monochromatic

#1B4D70 #2770A1 #3691CF #67ACDB #99C7E7

Accessibility & contrast

On white

3.44

#3691CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#3691CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3691CF

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3691CF	#FFFFFF	#000000	##000000
##3691CF	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)

#5F84CE

Tritanopia (blue-blind)

#00A0A7

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3691cf;
/* rgb */ color: rgb(54, 145, 207);
/* oklch */ color: oklch(63.1% 0.126 242.6);

Tailwind

colors: {
  custom: {
    50: '#81b1de',
    500: '#3691cf',
    950: '#000000',
  },
}

SCSS

$custom: #3691cf;
$custom-light: #81b1de;
$custom-dark: #000000;

JSON

{
  "hex": "#3691cf",
  "rgb": {
    "r": 54,
    "g": 145,
    "b": 207
  },
  "hsl": {
    "h": 204.314,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.63112,
    "c": 0.12604,
    "h": 242.6
  },
  "luminance": 0.2554
}

Semantic roles & 50–950 ramp

primary

#3691CF

secondary

#D2AA8F

accent

#8543E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3691CF

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

Preview Lab → · Contrast checker → · Palette generator →