#3F83A0#3F83A0

#3F83A0 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.082 H 228.5°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F83A0
RGB	rgb(63, 131, 160)
HSL	hsl(198, 43%, 44%)
HSV	hsv(198, 61%, 63%)
CMYK	cmyk(60.6%, 18.1%, 0%, 37.3%)
CIE-LAB	lab(51.64, -12.58, -21.94)
CIE-LCH	lch(51.64, 25.29, 240.18°)
OKLab	oklab(57.79% -0.0541 -0.0612)
OKLCH	oklch(57.79% 0.082 228.5)
XYZ	xyz(16.5089, 19.8258, 36.2076)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83A0 #A05C3F

analogous

#3FA08C #3F83A0 #3F52A0

triadic

#3F83A0 #A03F83 #83A03F

tetradic

#3F83A0 #8C3FA0 #A05C3F #52A03F

square

#3F83A0 #8C3FA0 #A05C3F #52A03F

split-complementary

#3F83A0 #A03F52 #A08C3F

monochromatic

#1C3B48 #2E5F74 #3F83A0 #5DA2BF #89BBD0

Accessibility & contrast

On white

4.23

#3F83A0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#3F83A0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83A0

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83A0	#FFFFFF	#000000	##000000
##3F83A0	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7481A1

Deuteranopia (green-blind)

#6677A0

Tritanopia (blue-blind)

#008B8C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f83a0;
/* rgb */ color: rgb(63, 131, 160);
/* oklch */ color: oklch(57.8% 0.082 228.5);

Tailwind

colors: {
  custom: {
    50: '#7da7bc',
    500: '#3f83a0',
    950: '#000000',
  },
}

SCSS

$custom: #3f83a0;
$custom-light: #7da7bc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83a0",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 160
  },
  "hsl": {
    "h": 197.938,
    "s": 43.498,
    "l": 43.725
  },
  "oklch": {
    "l": 0.57788,
    "c": 0.08169,
    "h": 228.5
  },
  "luminance": 0.19827
}

Semantic roles & 50–950 ramp

primary

#3F83A0

secondary

#BB9180

accent

#7A55D3

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3F83A0

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

Preview Lab → · Contrast checker → · Palette generator →