#3F82B9#3F82B9

#3F82B9 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.109 H 245.9°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F82B9
RGB	rgb(63, 130, 185)
HSL	hsl(207, 49%, 49%)
HSV	hsv(207, 66%, 73%)
CMYK	cmyk(65.9%, 29.7%, 0%, 27.5%)
CIE-LAB	lab(52.42, -3.68, -35.15)
CIE-LCH	lch(52.42, 35.34, 264.03°)
OKLab	oklab(58.77% -0.0444 -0.0992)
OKLCH	oklch(58.77% 0.109 245.9)
XYZ	xyz(18.7862, 20.5229, 48.8608)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F82B9 #B9763F

analogous

#3FB9B3 #3F82B9 #3F45B9

triadic

#3F82B9 #B93F82 #82B93F

tetradic

#3F82B9 #B33FB9 #B9763F #45B93F

square

#3F82B9 #B33FB9 #B9763F #45B93F

split-complementary

#3F82B9 #B93F45 #B9B33F

monochromatic

#20425E #2F628B #3F82B9 #699FCC #97BDDC

Accessibility & contrast

On white

4.11

#3F82B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3F82B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F82B9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F82B9	#FFFFFF	#000000	##000000
##3F82B9	1.00	4.11	5.10	5.10
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A84BB

Deuteranopia (green-blind)

#5978B8

Tritanopia (blue-blind)

#008F95

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f82b9;
/* rgb */ color: rgb(63, 130, 185);
/* oklch */ color: oklch(58.8% 0.109 245.9);

Tailwind

colors: {
  custom: {
    50: '#81a6ce',
    500: '#3f82b9',
    950: '#000000',
  },
}

SCSS

$custom: #3f82b9;
$custom-light: #81a6ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f82b9",
  "rgb": {
    "r": 63,
    "g": 130,
    "b": 185
  },
  "hsl": {
    "h": 207.049,
    "s": 49.194,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58767,
    "c": 0.10869,
    "h": 245.9
  },
  "luminance": 0.20525
}

Semantic roles & 50–950 ramp

primary

#3F82B9

secondary

#C7A78D

accent

#8D4FD9

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F82B9

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

Preview Lab → · Contrast checker → · Palette generator →