#3375BB#3375BB

#3375BB is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.4% C 0.128 H 252.3°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3375BB
RGB	rgb(51, 117, 187)
HSL	hsl(211, 57%, 47%)
HSV	hsv(211, 73%, 73%)
CMYK	cmyk(72.7%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.28, 2.96, -42.87)
CIE-LCH	lch(48.28, 42.97, 273.94°)
OKLab	oklab(55.43% -0.0389 -0.1221)
OKLCH	oklch(55.43% 0.128 252.3)
XYZ	xyz(16.6928, 17.0124, 49.4080)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3375BB #BB7933

analogous

#33B9BB #3375BB #3533BB

triadic

#3375BB #BB3375 #75BB33

tetradic

#3375BB #BB33B9 #BB7933 #33BB35

square

#3375BB #BB33B9 #BB7933 #33BB35

split-complementary

#3375BB #BB3533 #B9BB33

monochromatic

#19395B #26578B #3375BB #5994D2 #89B3DF

Accessibility & contrast

On white

4.77

#3375BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3375BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3375BB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3375BB	#FFFFFF	#000000	##FFFFFF
##3375BB	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)

#557ABE

Deuteranopia (green-blind)

#406DBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3375bb;
/* rgb */ color: rgb(51, 117, 187);
/* oklch */ color: oklch(55.4% 0.128 252.3);

Tailwind

colors: {
  custom: {
    50: '#7c9cd0',
    500: '#3375bb',
    950: '#000000',
  },
}

SCSS

$custom: #3375bb;
$custom-light: #7c9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3375bb",
  "rgb": {
    "r": 51,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 210.882,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55426,
    "c": 0.1281,
    "h": 252.3
  },
  "luminance": 0.17014
}

Semantic roles & 50–950 ramp

primary

#3375BB

secondary

#C9A681

accent

#9647E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3375BB

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

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