#3F7DBF#3F7DBF

#3F7DBF is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 57.9% C 0.121 H 251.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DBF
RGB	rgb(63, 125, 191)
HSL	hsl(211, 50%, 50%)
HSV	hsv(211, 67%, 75%)
CMYK	cmyk(67%, 34.6%, 0%, 25.1%)
CIE-LAB	lab(51.25, 1.38, -40.44)
CIE-LCH	lch(51.25, 40.46, 271.95°)
OKLab	oklab(57.94% -0.0375 -0.1147)
OKLCH	oklch(57.94% 0.121 251.9)
XYZ	xyz(18.7840, 19.4837, 52.0509)
Luminance	0.1949 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DBF #BF813F

analogous

#3FBDBF #3F7DBF #413FBF

triadic

#3F7DBF #BF3F7D #7DBF3F

tetradic

#3F7DBF #BF3FBD #BF813F #3FBF41

square

#3F7DBF #BF3FBD #BF813F #3FBF41

split-complementary

#3F7DBF #BF413F #BDBF3F

monochromatic

#214163 #305F91 #3F7DBF #6D9CCF #9BBBDE

Accessibility & contrast

On white

4.29

#3F7DBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#3F7DBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DBF

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DBF	#FFFFFF	#000000	##000000
##3F7DBF	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6081C2

Deuteranopia (green-blind)

#4E75BE

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7dbf;
/* rgb */ color: rgb(63, 125, 191);
/* oklch */ color: oklch(57.9% 0.121 251.9);

Tailwind

colors: {
  custom: {
    50: '#81a2d2',
    500: '#3f7dbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7dbf;
$custom-light: #81a2d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7dbf",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 191
  },
  "hsl": {
    "h": 210.938,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57939,
    "c": 0.12065,
    "h": 251.9
  },
  "luminance": 0.19486
}

Semantic roles & 50–950 ramp

primary

#3F7DBF

secondary

#CAAE90

accent

#964EDA

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #3F7DBF

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

Preview Lab → · Contrast checker → · Palette generator →