#3F7FBF#3F7FBF

#3F7FBF is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.4% C 0.119 H 250.6°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FBF
RGB	rgb(63, 127, 191)
HSL	hsl(210, 50%, 50%)
HSV	hsv(210, 67%, 75%)
CMYK	cmyk(67%, 33.5%, 0%, 25.1%)
CIE-LAB	lab(51.83, 0.18, -39.52)
CIE-LCH	lch(51.83, 39.52, 270.26°)
OKLab	oklab(58.4% -0.0395 -0.112)
OKLCH	oklch(58.4% 0.119 250.6)
XYZ	xyz(19.0398, 19.9951, 52.1361)
Luminance	0.2000 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FBF #BF7F3F

analogous

#3FBFBF #3F7FBF #3F3FBF

triadic

#3F7FBF #BF3F7F #7FBF3F

tetradic

#3F7FBF #BF3FBF #BF7F3F #3FBF3F

square

#3F7FBF #BF3FBF #BF7F3F #3FBF3F

split-complementary

#3F7FBF #BF3F3F #BFBF3F

monochromatic

#214263 #306091 #3F7FBF #6D9ECF #9BBCDE

Accessibility & contrast

On white

4.20

#3F7FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3F7FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FBF

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FBF	#FFFFFF	#000000	##000000
##3F7FBF	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C2

Deuteranopia (green-blind)

#5176BE

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7fbf;
/* rgb */ color: rgb(63, 127, 191);
/* oklch */ color: oklch(58.4% 0.119 250.6);

Tailwind

colors: {
  custom: {
    50: '#81a3d2',
    500: '#3f7fbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fbf;
$custom-light: #81a3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fbf",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 191
  },
  "hsl": {
    "h": 210,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58397,
    "c": 0.11874,
    "h": 250.6
  },
  "luminance": 0.19997
}

Semantic roles & 50–950 ramp

primary

#3F7FBF

secondary

#CAAD90

accent

#944EDA

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7FBF

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

Preview Lab → · Contrast checker → · Palette generator →