#3F7FCA#3F7FCA

#3F7FCA is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.0% C 0.133 H 254.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FCA
RGB	rgb(63, 127, 202)
HSL	hsl(212, 57%, 52%)
HSV	hsv(212, 69%, 79%)
CMYK	cmyk(68.8%, 37.1%, 0%, 20.8%)
CIE-LAB	lab(52.40, 4.05, -44.90)
CIE-LCH	lch(52.40, 45.08, 275.15°)
OKLab	oklab(59.02% -0.0366 -0.1277)
OKLCH	oklch(59.02% 0.133 254)
XYZ	xyz(20.2960, 20.4976, 58.7525)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FCA #CA8A3F

analogous

#3FC5CA #3F7FCA #453FCA

triadic

#3F7FCA #CA3F7F #7FCA3F

tetradic

#3F7FCA #CA3FC5 #CA8A3F #3FCA45

square

#3F7FCA #CA3FC5 #CA8A3F #3FCA45

split-complementary

#3F7FCA #CA453F #C5CA3F

monochromatic

#1F4470 #2C61A0 #3F7FCA #6F9FD7 #9FBFE4

Accessibility & contrast

On white

4.12

#3F7FCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3F7FCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FCA

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FCA	#FFFFFF	#000000	##000000
##3F7FCA	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CD

Deuteranopia (green-blind)

#4977C8

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7fca;
/* rgb */ color: rgb(63, 127, 202);
/* oklch */ color: oklch(59.0% 0.133 254.0);

Tailwind

colors: {
  custom: {
    50: '#83a3da',
    500: '#3f7fca',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fca;
$custom-light: #83a3da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fca",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 202
  },
  "hsl": {
    "h": 212.374,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.59022,
    "c": 0.13286,
    "h": 254
  },
  "luminance": 0.205
}

Semantic roles & 50–950 ramp

primary

#3F7FCA

secondary

#D1B594

accent

#9A48E0

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F7FCA

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

Preview Lab → · Contrast checker → · Palette generator →