#3675B9#3675B9

#3675B9 is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.4% C 0.124 H 252.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3675B9
RGB	rgb(54, 117, 185)
HSL	hsl(211, 55%, 47%)
HSV	hsv(211, 71%, 73%)
CMYK	cmyk(70.8%, 36.8%, 0%, 27.5%)
CIE-LAB	lab(48.27, 2.66, -41.72)
CIE-LCH	lch(48.27, 41.80, 273.65°)
OKLab	oklab(55.42% -0.0374 -0.1186)
OKLCH	oklch(55.42% 0.124 252.5)
XYZ	xyz(16.6363, 17.0078, 48.2956)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3675B9 #B97A36

analogous

#36B7B9 #3675B9 #3836B9

triadic

#3675B9 #B93675 #75B936

tetradic

#3675B9 #B936B7 #B97A36 #36B938

square

#3675B9 #B936B7 #B97A36 #36B938

split-complementary

#3675B9 #B93836 #B7B936

monochromatic

#1A395A #28578A #3675B9 #5D94D0 #8CB3DD

Accessibility & contrast

On white

4.77

#3675B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3675B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3675B9

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3675B9	#FFFFFF	#000000	##FFFFFF
##3675B9	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5679BC

Deuteranopia (green-blind)

#436DB8

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3675b9;
/* rgb */ color: rgb(54, 117, 185);
/* oklch */ color: oklch(55.4% 0.124 252.5);

Tailwind

colors: {
  custom: {
    50: '#7d9cce',
    500: '#3675b9',
    950: '#000000',
  },
}

SCSS

$custom: #3675b9;
$custom-light: #7d9cce;
$custom-dark: #000000;

JSON

{
  "hex": "#3675b9",
  "rgb": {
    "r": 54,
    "g": 117,
    "b": 185
  },
  "hsl": {
    "h": 211.145,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.55415,
    "c": 0.1244,
    "h": 252.5
  },
  "luminance": 0.1701
}

Semantic roles & 50–950 ramp

primary

#3675B9

secondary

#C8A783

accent

#974ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3675B9

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

Preview Lab → · Contrast checker → · Palette generator →