#3F82B0#3F82B0

#3F82B0 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.098 H 241.2°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F82B0
RGB	rgb(63, 130, 176)
HSL	hsl(204, 47%, 47%)
HSV	hsv(204, 64%, 69%)
CMYK	cmyk(64.2%, 26.1%, 0%, 31%)
CIE-LAB	lab(52.01, -6.74, -30.62)
CIE-LCH	lch(52.01, 31.35, 257.59°)
OKLab	oklab(58.31% -0.0473 -0.0861)
OKLCH	oklch(58.31% 0.098 241.2)
XYZ	xyz(17.8660, 20.1548, 44.0146)
Luminance	0.2016 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F82B0 #B06D3F

analogous

#3FB0A6 #3F82B0 #3F4AB0

triadic

#3F82B0 #B03F82 #82B03F

tetradic

#3F82B0 #A63FB0 #B06D3F #4AB03F

square

#3F82B0 #A63FB0 #B06D3F #4AB03F

split-complementary

#3F82B0 #B03F4A #B0A63F

monochromatic

#1F3F56 #2F6183 #3F82B0 #659FC8 #92BBD8

Accessibility & contrast

On white

4.17

#3F82B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3F82B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F82B0

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F82B0	#FFFFFF	#000000	##000000
##3F82B0	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D82B2

Deuteranopia (green-blind)

#5E77AF

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f82b0;
/* rgb */ color: rgb(63, 130, 176);
/* oklch */ color: oklch(58.3% 0.098 241.2);

Tailwind

colors: {
  custom: {
    50: '#7fa6c7',
    500: '#3f82b0',
    950: '#000000',
  },
}

SCSS

$custom: #3f82b0;
$custom-light: #7fa6c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f82b0",
  "rgb": {
    "r": 63,
    "g": 130,
    "b": 176
  },
  "hsl": {
    "h": 204.425,
    "s": 47.28,
    "l": 46.863
  },
  "oklch": {
    "l": 0.58307,
    "c": 0.09822,
    "h": 241.2
  },
  "luminance": 0.20157
}

Semantic roles & 50–950 ramp

primary

#3F82B0

secondary

#C3A088

accent

#8751D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F82B0

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

Preview Lab → · Contrast checker → · Palette generator →