#3F8BB5#3F8BB5

#3F8BB5 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.7% C 0.098 H 235.8°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BB5
RGB	rgb(63, 139, 181)
HSL	hsl(201, 48%, 48%)
HSV	hsv(201, 65%, 71%)
CMYK	cmyk(65.2%, 23.2%, 0%, 29%)
CIE-LAB	lab(54.92, -10.21, -28.96)
CIE-LCH	lch(54.92, 30.71, 250.58°)
OKLab	oklab(60.69% -0.0552 -0.0812)
OKLCH	oklch(60.69% 0.098 235.8)
XYZ	xyz(19.6198, 22.8562, 47.0848)
Luminance	0.2286 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BB5 #B5693F

analogous

#3FB5A4 #3F8BB5 #3F50B5

triadic

#3F8BB5 #B53F8B #8BB53F

tetradic

#3F8BB5 #A43FB5 #B5693F #50B53F

square

#3F8BB5 #A43FB5 #B5693F #50B53F

split-complementary

#3F8BB5 #B53F50 #B5A43F

monochromatic

#1F455A #2F6888 #3F8BB5 #67A7CA #94C1DA

Accessibility & contrast

On white

3.77

#3F8BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#3F8BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BB5

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BB5	#FFFFFF	#000000	##000000
##3F8BB5	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB7

Deuteranopia (green-blind)

#677EB4

Tritanopia (blue-blind)

#009699

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f8bb5;
/* rgb */ color: rgb(63, 139, 181);
/* oklch */ color: oklch(60.7% 0.098 235.8);

Tailwind

colors: {
  custom: {
    50: '#80accb',
    500: '#3f8bb5',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bb5;
$custom-light: #80accb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bb5",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 181
  },
  "hsl": {
    "h": 201.356,
    "s": 48.361,
    "l": 47.843
  },
  "oklch": {
    "l": 0.60688,
    "c": 0.09822,
    "h": 235.8
  },
  "luminance": 0.22858
}

Semantic roles & 50–950 ramp

primary

#3F8BB5

secondary

#C59F8A

accent

#8050D8

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F8BB5

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

Preview Lab → · Contrast checker → · Palette generator →