#3F7CBF#3F7CBF

#3F7CBF is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.122 H 252.6°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CBF
RGB	rgb(63, 124, 191)
HSL	hsl(211, 50%, 50%)
HSV	hsv(211, 67%, 75%)
CMYK	cmyk(67%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(50.96, 1.98, -40.90)
CIE-LCH	lch(50.96, 40.94, 272.77°)
OKLab	oklab(57.71% -0.0365 -0.116)
OKLCH	oklch(57.71% 0.122 252.6)
XYZ	xyz(18.6581, 19.2317, 52.0089)
Luminance	0.1923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CBF #BF823F

analogous

#3FBCBF #3F7CBF #423FBF

triadic

#3F7CBF #BF3F7C #7CBF3F

tetradic

#3F7CBF #BF3FBC #BF823F #3FBF42

square

#3F7CBF #BF3FBC #BF823F #3FBF42

split-complementary

#3F7CBF #BF423F #BCBF3F

monochromatic

#214063 #305E91 #3F7CBF #6D9BCF #9BBBDE

Accessibility & contrast

On white

4.33

#3F7CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#3F7CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CBF

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CBF	#FFFFFF	#000000	##000000
##3F7CBF	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E80C2

Deuteranopia (green-blind)

#4C74BE

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7cbf;
/* rgb */ color: rgb(63, 124, 191);
/* oklch */ color: oklch(57.7% 0.122 252.6);

Tailwind

colors: {
  custom: {
    50: '#81a1d2',
    500: '#3f7cbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cbf;
$custom-light: #81a1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cbf",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 211.406,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57712,
    "c": 0.12162,
    "h": 252.6
  },
  "luminance": 0.19234
}

Semantic roles & 50–950 ramp

primary

#3F7CBF

secondary

#CAAE90

accent

#974EDA

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F7CBF

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

Preview Lab → · Contrast checker → · Palette generator →