#3F85CB#3F85CB

#3F85CB is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.4% C 0.128 H 250.8°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F85CB
RGB	rgb(63, 133, 203)
HSL	hsl(210, 57%, 52%)
HSV	hsv(210, 69%, 80%)
CMYK	cmyk(69%, 34.5%, 0%, 20.4%)
CIE-LAB	lab(54.18, 0.80, -42.65)
CIE-LCH	lch(54.18, 42.66, 271.08°)
OKLab	oklab(60.43% -0.0422 -0.121)
OKLCH	oklch(60.43% 0.128 250.8)
XYZ	xyz(21.2129, 22.1414, 59.6441)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F85CB #CB853F

analogous

#3FCBCB #3F85CB #3F3FCB

triadic

#3F85CB #CB3F85 #85CB3F

tetradic

#3F85CB #CB3FCB #CB853F #3FCB3F

square

#3F85CB #CB3FCB #CB853F #3FCB3F

split-complementary

#3F85CB #CB3F3F #CBCB3F

monochromatic

#1F4871 #2C66A1 #3F85CB #6FA4D8 #9FC2E5

Accessibility & contrast

On white

3.87

#3F85CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3F85CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F85CB

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F85CB	#FFFFFF	#000000	##000000
##3F85CB	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6689CE

Deuteranopia (green-blind)

#527CCA

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f85cb;
/* rgb */ color: rgb(63, 133, 203);
/* oklch */ color: oklch(60.4% 0.128 250.8);

Tailwind

colors: {
  custom: {
    50: '#83a8db',
    500: '#3f85cb',
    950: '#000000',
  },
}

SCSS

$custom: #3f85cb;
$custom-light: #83a8db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f85cb",
  "rgb": {
    "r": 63,
    "g": 133,
    "b": 203
  },
  "hsl": {
    "h": 210,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.60433,
    "c": 0.12819,
    "h": 250.8
  },
  "luminance": 0.22144
}

Semantic roles & 50–950 ramp

primary

#3F85CB

secondary

#D1B394

accent

#9447E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F85CB

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

Preview Lab → · Contrast checker → · Palette generator →