#3F7CA3#3F7CA3

#3F7CA3 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.088 H 239.0°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CA3
RGB	rgb(63, 124, 163)
HSL	hsl(203, 44%, 44%)
HSV	hsv(203, 61%, 64%)
CMYK	cmyk(61.3%, 23.9%, 0%, 36.1%)
CIE-LAB	lab(49.64, -7.61, -26.78)
CIE-LCH	lch(49.64, 27.84, 254.14°)
OKLab	oklab(56.24% -0.0451 -0.0751)
OKLCH	oklch(56.24% 0.088 239)
XYZ	xyz(15.8659, 18.1149, 37.3036)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CA3 #A3663F

analogous

#3FA398 #3F7CA3 #3F4AA3

triadic

#3F7CA3 #A33F7C #7CA33F

tetradic

#3F7CA3 #983FA3 #A3663F #4AA33F

square

#3F7CA3 #983FA3 #A3663F #4AA33F

split-complementary

#3F7CA3 #A33F4A #A3983F

monochromatic

#1D394B #2E5A77 #3F7CA3 #5E9AC1 #8AB6D2

Accessibility & contrast

On white

4.54

#3F7CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3F7CA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CA3

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CA3	#FFFFFF	#000000	##000000
##3F7CA3	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA5

Deuteranopia (green-blind)

#5C72A2

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f7ca3;
/* rgb */ color: rgb(63, 124, 163);
/* oklch */ color: oklch(56.2% 0.088 239.0);

Tailwind

colors: {
  custom: {
    50: '#7da1be',
    500: '#3f7ca3',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ca3;
$custom-light: #7da1be;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ca3",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 163
  },
  "hsl": {
    "h": 203.4,
    "s": 44.248,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56236,
    "c": 0.08758,
    "h": 239
  },
  "luminance": 0.18116
}

Semantic roles & 50–950 ramp

primary

#3F7CA3

secondary

#BD9881

accent

#8654D4

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #3F7CA3

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

Preview Lab → · Contrast checker → · Palette generator →