#3F87A5#3F87A5

#3F87A5 is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.0% C 0.085 H 228.1°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3F87A5
RGB	rgb(63, 135, 165)
HSL	hsl(198, 45%, 45%)
HSV	hsv(198, 62%, 65%)
CMYK	cmyk(61.8%, 18.2%, 0%, 35.3%)
CIE-LAB	lab(53.06, -13.20, -22.65)
CIE-LCH	lch(53.06, 26.22, 239.77°)
OKLab	oklab(58.99% -0.0567 -0.0632)
OKLCH	oklch(58.99% 0.085 228.1)
XYZ	xyz(17.5028, 21.0996, 38.7402)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87A5 #A55D3F

analogous

#3FA590 #3F87A5 #3F54A5

triadic

#3F87A5 #A53F87 #87A53F

tetradic

#3F87A5 #903FA5 #A55D3F #54A53F

square

#3F87A5 #903FA5 #A55D3F #54A53F

split-complementary

#3F87A5 #A53F54 #A5903F

monochromatic

#1D3F4C #2E6379 #3F87A5 #5FA5C2 #8CBED3

Accessibility & contrast

On white

4.02

#3F87A5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#3F87A5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87A5

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87A5	#FFFFFF	#000000	##000000
##3F87A5	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7785A7

Deuteranopia (green-blind)

#697AA5

Tritanopia (blue-blind)

#009091

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f87a5;
/* rgb */ color: rgb(63, 135, 165);
/* oklch */ color: oklch(59.0% 0.085 228.1);

Tailwind

colors: {
  custom: {
    50: '#7eaabf',
    500: '#3f87a5',
    950: '#000000',
  },
}

SCSS

$custom: #3f87a5;
$custom-light: #7eaabf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87a5",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 165
  },
  "hsl": {
    "h": 197.647,
    "s": 44.737,
    "l": 44.706
  },
  "oklch": {
    "l": 0.58985,
    "c": 0.08491,
    "h": 228.1
  },
  "luminance": 0.21101
}

Semantic roles & 50–950 ramp

primary

#3F87A5

secondary

#BE9482

accent

#7953D4

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3F87A5

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

Preview Lab → · Contrast checker → · Palette generator →