#3F8BB4#3F8BB4

#3F8BB4 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.6% C 0.097 H 235.2°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BB4
RGB	rgb(63, 139, 180)
HSL	hsl(201, 48%, 48%)
HSV	hsv(201, 65%, 71%)
CMYK	cmyk(65%, 22.8%, 0%, 29.4%)
CIE-LAB	lab(54.88, -10.54, -28.45)
CIE-LCH	lch(54.88, 30.34, 249.67°)
OKLab	oklab(60.64% -0.0555 -0.0798)
OKLCH	oklch(60.64% 0.097 235.2)
XYZ	xyz(19.5175, 22.8153, 46.5464)
Luminance	0.2282 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BB4 #B4683F

analogous

#3FB4A3 #3F8BB4 #3F50B4

triadic

#3F8BB4 #B43F8B #8BB43F

tetradic

#3F8BB4 #A33FB4 #B4683F #50B43F

square

#3F8BB4 #A33FB4 #B4683F #50B43F

split-complementary

#3F8BB4 #B43F50 #B4A33F

monochromatic

#1F4559 #2F6887 #3F8BB4 #67A7CA #94C1DA

Accessibility & contrast

On white

3.77

#3F8BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#3F8BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BB4

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BB4	#FFFFFF	#000000	##000000
##3F8BB4	1.00	3.77	5.56	5.56
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB6

Deuteranopia (green-blind)

#677EB3

Tritanopia (blue-blind)

#009699

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f8bb4;
/* rgb */ color: rgb(63, 139, 180);
/* oklch */ color: oklch(60.6% 0.097 235.2);

Tailwind

colors: {
  custom: {
    50: '#80acca',
    500: '#3f8bb4',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bb4;
$custom-light: #80acca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bb4",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 180
  },
  "hsl": {
    "h": 201.026,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.6064,
    "c": 0.09723,
    "h": 235.2
  },
  "luminance": 0.22817
}

Semantic roles & 50–950 ramp

primary

#3F8BB4

secondary

#C59F8A

accent

#8050D8

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8BB4

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

Preview Lab → · Contrast checker → · Palette generator →