#3F8CBD#3F8CBD

#3F8CBD is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.3% C 0.106 H 239.7°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CBD
RGB	rgb(63, 140, 189)
HSL	hsl(203, 50%, 49%)
HSV	hsv(203, 67%, 74%)
CMYK	cmyk(66.7%, 25.9%, 0%, 25.9%)
CIE-LAB	lab(55.57, -8.10, -32.52)
CIE-LCH	lch(55.57, 33.51, 256.02°)
OKLab	oklab(61.31% -0.0535 -0.0915)
OKLCH	oklch(61.31% 0.106 239.7)
XYZ	xyz(20.6098, 23.4849, 51.5811)
Luminance	0.2349 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CBD #BD703F

analogous

#3FBDAF #3F8CBD #3F4DBD

triadic

#3F8CBD #BD3F8C #8CBD3F

tetradic

#3F8CBD #AF3FBD #BD703F #4DBD3F

square

#3F8CBD #AF3FBD #BD703F #4DBD3F

split-complementary

#3F8CBD #BD3F4D #BDAF3F

monochromatic

#204861 #306A8F #3F8CBD #6BA8CE #99C3DD

Accessibility & contrast

On white

3.69

#3F8CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#3F8CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CBD

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CBD	#FFFFFF	#000000	##000000
##3F8CBD	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758CBF

Deuteranopia (green-blind)

#6480BC

Tritanopia (blue-blind)

#00989D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8cbd;
/* rgb */ color: rgb(63, 140, 189);
/* oklch */ color: oklch(61.3% 0.106 239.7);

Tailwind

colors: {
  custom: {
    50: '#81add1',
    500: '#3f8cbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f8cbd;
$custom-light: #81add1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8cbd",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 189
  },
  "hsl": {
    "h": 203.333,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.61313,
    "c": 0.10601,
    "h": 239.7
  },
  "luminance": 0.23487
}

Semantic roles & 50–950 ramp

primary

#3F8CBD

secondary

#C9A58F

accent

#844EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F8CBD

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

Preview Lab → · Contrast checker → · Palette generator →