#3F7FBE#3F7FBE

#3F7FBE is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.3% C 0.117 H 250.2°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FBE
RGB	rgb(63, 127, 190)
HSL	hsl(210, 50%, 50%)
HSV	hsv(210, 67%, 75%)
CMYK	cmyk(66.8%, 33.2%, 0%, 25.5%)
CIE-LAB	lab(51.78, -0.17, -39.02)
CIE-LCH	lch(51.78, 39.02, 269.75°)
OKLab	oklab(58.34% -0.0398 -0.1105)
OKLCH	oklch(58.34% 0.117 250.2)
XYZ	xyz(18.9301, 19.9513, 51.5586)
Luminance	0.1995 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FBE #BE7E3F

analogous

#3FBEBE #3F7FBE #3F3FBE

triadic

#3F7FBE #BE3F7F #7FBE3F

tetradic

#3F7FBE #BE3FBE #BE7E3F #3FBE3F

square

#3F7FBE #BE3FBE #BE7E3F #3FBE3F

split-complementary

#3F7FBE #BE3F3F #BEBE3F

monochromatic

#214262 #306090 #3F7FBE #6C9DCE #9ABCDD

Accessibility & contrast

On white

4.21

#3F7FBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#3F7FBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FBE

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FBE	#FFFFFF	#000000	##000000
##3F7FBE	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C1

Deuteranopia (green-blind)

#5276BD

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f7fbe;
/* rgb */ color: rgb(63, 127, 190);
/* oklch */ color: oklch(58.3% 0.117 250.2);

Tailwind

colors: {
  custom: {
    50: '#81a3d2',
    500: '#3f7fbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fbe;
$custom-light: #81a3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fbe",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 190
  },
  "hsl": {
    "h": 209.764,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.58342,
    "c": 0.11746,
    "h": 250.2
  },
  "luminance": 0.19953
}

Semantic roles & 50–950 ramp

primary

#3F7FBE

secondary

#C9AC8F

accent

#934EDA

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7FBE

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

Preview Lab → · Contrast checker → · Palette generator →