#3F8DB4#3F8DB4

#3F8DB4 is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.1% C 0.096 H 233.2°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DB4
RGB	rgb(63, 141, 180)
HSL	hsl(200, 48%, 48%)
HSV	hsv(200, 65%, 71%)
CMYK	cmyk(65%, 21.7%, 0%, 29.4%)
CIE-LAB	lab(55.48, -11.66, -27.52)
CIE-LCH	lch(55.48, 29.89, 247.04°)
OKLab	oklab(61.12% -0.0577 -0.0771)
OKLCH	oklch(61.12% 0.096 233.2)
XYZ	xyz(19.8098, 23.3998, 46.6438)
Luminance	0.2340 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DB4 #B4663F

analogous

#3FB4A0 #3F8DB4 #3F53B4

triadic

#3F8DB4 #B43F8D #8DB43F

tetradic

#3F8DB4 #A03FB4 #B4663F #53B43F

square

#3F8DB4 #A03FB4 #B4663F #53B43F

split-complementary

#3F8DB4 #B43F53 #B4A03F

monochromatic

#1F4659 #2F6987 #3F8DB4 #67A9CA #94C2DA

Accessibility & contrast

On white

3.70

#3F8DB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#3F8DB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DB4

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DB4	#FFFFFF	#000000	##000000
##3F8DB4	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8CB6

Deuteranopia (green-blind)

#6A80B3

Tritanopia (blue-blind)

#00979A

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8db4;
/* rgb */ color: rgb(63, 141, 180);
/* oklch */ color: oklch(61.1% 0.096 233.2);

Tailwind

colors: {
  custom: {
    50: '#80aeca',
    500: '#3f8db4',
    950: '#000000',
  },
}

SCSS

$custom: #3f8db4;
$custom-light: #80aeca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8db4",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 180
  },
  "hsl": {
    "h": 200,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.61117,
    "c": 0.0963,
    "h": 233.2
  },
  "luminance": 0.23402
}

Semantic roles & 50–950 ramp

primary

#3F8DB4

secondary

#C59E8A

accent

#7D50D8

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8DB4

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

Preview Lab → · Contrast checker → · Palette generator →