#3F7CA1#3F7CA1

#3F7CA1 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.1% C 0.085 H 237.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CA1
RGB	rgb(63, 124, 161)
HSL	hsl(203, 44%, 44%)
HSV	hsv(203, 61%, 63%)
CMYK	cmyk(60.9%, 23%, 0%, 36.9%)
CIE-LAB	lab(49.55, -8.27, -25.75)
CIE-LCH	lch(49.55, 27.04, 252.20°)
OKLab	oklab(56.14% -0.0458 -0.0721)
OKLCH	oklch(56.14% 0.085 237.6)
XYZ	xyz(15.6881, 18.0438, 36.3673)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CA1 #A1643F

analogous

#3FA195 #3F7CA1 #3F4BA1

triadic

#3F7CA1 #A13F7C #7CA13F

tetradic

#3F7CA1 #953FA1 #A1643F #4BA13F

square

#3F7CA1 #953FA1 #A1643F #4BA13F

split-complementary

#3F7CA1 #A13F4B #A1953F

monochromatic

#1D3849 #2E5A75 #3F7CA1 #5D9BC0 #89B6D1

Accessibility & contrast

On white

4.56

#3F7CA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3F7CA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CA1

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CA1	#FFFFFF	#000000	##000000
##3F7CA1	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA3

Deuteranopia (green-blind)

#5D71A0

Tritanopia (blue-blind)

#008588

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f7ca1;
/* rgb */ color: rgb(63, 124, 161);
/* oklch */ color: oklch(56.1% 0.085 237.6);

Tailwind

colors: {
  custom: {
    50: '#7da1bd',
    500: '#3f7ca1',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ca1;
$custom-light: #7da1bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ca1",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 161
  },
  "hsl": {
    "h": 202.653,
    "s": 43.75,
    "l": 43.922
  },
  "oklch": {
    "l": 0.56139,
    "c": 0.08544,
    "h": 237.6
  },
  "luminance": 0.18045
}

Semantic roles & 50–950 ramp

primary

#3F7CA1

secondary

#BC9780

accent

#8454D3

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #3F7CA1

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

Preview Lab → · Contrast checker → · Palette generator →