#3F8BBF#3F8BBF

#3F8BBF is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 61.2% C 0.109 H 241.6°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BBF
RGB	rgb(63, 139, 191)
HSL	hsl(204, 50%, 50%)
HSV	hsv(204, 67%, 75%)
CMYK	cmyk(67%, 27.2%, 0%, 25.1%)
CIE-LAB	lab(55.36, -6.85, -33.98)
CIE-LCH	lch(55.36, 34.66, 258.60°)
OKLab	oklab(61.18% -0.0518 -0.0957)
OKLCH	oklch(61.18% 0.109 241.6)
XYZ	xyz(20.6829, 23.2814, 52.6839)
Luminance	0.2328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BBF #BF733F

analogous

#3FBFB3 #3F8BBF #3F4BBF

triadic

#3F8BBF #BF3F8B #8BBF3F

tetradic

#3F8BBF #B33FBF #BF733F #4BBF3F

square

#3F8BBF #B33FBF #BF733F #4BBF3F

split-complementary

#3F8BBF #BF3F4B #BFB33F

monochromatic

#214863 #306A91 #3F8BBF #6DA7CF #9BC3DE

Accessibility & contrast

On white

3.71

#3F8BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#3F8BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BBF

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BBF	#FFFFFF	#000000	##000000
##3F8BBF	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738CC1

Deuteranopia (green-blind)

#627FBE

Tritanopia (blue-blind)

#00989D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8bbf;
/* rgb */ color: rgb(63, 139, 191);
/* oklch */ color: oklch(61.2% 0.109 241.6);

Tailwind

colors: {
  custom: {
    50: '#82acd2',
    500: '#3f8bbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bbf;
$custom-light: #82acd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bbf",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 191
  },
  "hsl": {
    "h": 204.375,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.61178,
    "c": 0.10886,
    "h": 241.6
  },
  "luminance": 0.23284
}

Semantic roles & 50–950 ramp

primary

#3F8BBF

secondary

#CAA790

accent

#874EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #3F8BBF

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

Preview Lab → · Contrast checker → · Palette generator →