#3B8DDD#3B8DDD

#3B8DDD is a light, vivid cyan. Relative luminance 0.252; OKLCH L 63.1% C 0.144 H 250.8°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3B8DDD
RGB	rgb(59, 141, 221)
HSL	hsl(210, 70%, 55%)
HSV	hsv(210, 73%, 87%)
CMYK	cmyk(73.3%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(57.27, 1.86, -47.90)
CIE-LCH	lch(57.27, 47.93, 272.22°)
OKLab	oklab(63.12% -0.0475 -0.1363)
OKLCH	oklch(63.12% 0.144 250.8)
XYZ	xyz(24.3747, 25.1973, 71.9715)
Luminance	0.2520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B8DDD #DD8B3B

analogous

#3BDDDC #3B8DDD #3B3CDD

triadic

#3B8DDD #DD3B8D #8DDD3B

tetradic

#3B8DDD #DC3BDD #DD8B3B #3CDD3B

square

#3B8DDD #DC3BDD #DD8B3B #3CDD3B

split-complementary

#3B8DDD #DD3B3C #DDDC3B

monochromatic

#174F86 #206EBA #3B8DDD #6FABE6 #A3CAEF

Accessibility & contrast

On white

3.48

#3B8DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#3B8DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B8DDD

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B8DDD	#FFFFFF	#000000	##000000
##3B8DDD	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6892E0

Deuteranopia (green-blind)

#5083DB

Tritanopia (blue-blind)

#00A0AA

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3b8ddd;
/* rgb */ color: rgb(59, 141, 221);
/* oklch */ color: oklch(63.1% 0.144 250.8);

Tailwind

colors: {
  custom: {
    50: '#85ade8',
    500: '#3b8ddd',
    950: '#000000',
  },
}

SCSS

$custom: #3b8ddd;
$custom-light: #85ade8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b8ddd",
  "rgb": {
    "r": 59,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 209.63,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.63119,
    "c": 0.14437,
    "h": 250.8
  },
  "luminance": 0.252
}

Semantic roles & 50–950 ramp

primary

#3B8DDD

secondary

#DCB998

accent

#933BED

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3B8DDD

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

Preview Lab → · Contrast checker → · Palette generator →