#3F8DBB#3F8DBB

#3F8DBB is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.5% C 0.103 H 237.7°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DBB
RGB	rgb(63, 141, 187)
HSL	hsl(202, 50%, 49%)
HSV	hsv(202, 66%, 73%)
CMYK	cmyk(66.3%, 24.6%, 0%, 26.7%)
CIE-LAB	lab(55.78, -9.34, -31.05)
CIE-LCH	lch(55.78, 32.42, 253.27°)
OKLab	oklab(61.45% -0.0552 -0.0873)
OKLCH	oklch(61.45% 0.103 237.7)
XYZ	xyz(20.5410, 23.6922, 50.4946)
Luminance	0.2369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DBB #BB6D3F

analogous

#3FBBAB #3F8DBB #3F4FBB

triadic

#3F8DBB #BB3F8D #8DBB3F

tetradic

#3F8DBB #AB3FBB #BB6D3F #4FBB3F

square

#3F8DBB #AB3FBB #BB6D3F #4FBB3F

split-complementary

#3F8DBB #BB3F4F #BBAB3F

monochromatic

#20485F #306A8D #3F8DBB #6AA8CD #98C3DC

Accessibility & contrast

On white

3.66

#3F8DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#3F8DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DBB

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DBB	#FFFFFF	#000000	##000000
##3F8DBB	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778DBD

Deuteranopia (green-blind)

#6680BA

Tritanopia (blue-blind)

#00999D

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8dbb;
/* rgb */ color: rgb(63, 141, 187);
/* oklch */ color: oklch(61.5% 0.103 237.7);

Tailwind

colors: {
  custom: {
    50: '#81aecf',
    500: '#3f8dbb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dbb;
$custom-light: #81aecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dbb",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 187
  },
  "hsl": {
    "h": 202.258,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.61451,
    "c": 0.10327,
    "h": 237.7
  },
  "luminance": 0.23694
}

Semantic roles & 50–950 ramp

primary

#3F8DBB

secondary

#C8A38E

accent

#824FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8DBB

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

Preview Lab → · Contrast checker → · Palette generator →