#3F7DCA#3F7DCA

#3F7DCA is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.6% C 0.135 H 255.1°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DCA
RGB	rgb(63, 125, 202)
HSL	hsl(213, 57%, 52%)
HSV	hsv(213, 69%, 79%)
CMYK	cmyk(68.8%, 38.1%, 0%, 20.8%)
CIE-LAB	lab(51.82, 5.26, -45.81)
CIE-LCH	lch(51.82, 46.11, 276.55°)
OKLab	oklab(58.58% -0.0347 -0.1304)
OKLCH	oklch(58.58% 0.135 255.1)
XYZ	xyz(20.0403, 19.9862, 58.6672)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DCA #CA8C3F

analogous

#3FC3CA #3F7DCA #463FCA

triadic

#3F7DCA #CA3F7D #7DCA3F

tetradic

#3F7DCA #CA3FC3 #CA8C3F #3FCA46

square

#3F7DCA #CA3FC3 #CA8C3F #3FCA46

split-complementary

#3F7DCA #CA463F #C3CA3F

monochromatic

#1F4370 #2C60A0 #3F7DCA #6F9DD7 #9FBEE4

Accessibility & contrast

On white

4.20

#3F7DCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3F7DCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DCA

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DCA	#FFFFFF	#000000	##000000
##3F7DCA	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)

#5A83CD

Deuteranopia (green-blind)

#4576C8

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7dca;
/* rgb */ color: rgb(63, 125, 202);
/* oklch */ color: oklch(58.6% 0.135 255.1);

Tailwind

colors: {
  custom: {
    50: '#83a2da',
    500: '#3f7dca',
    950: '#000000',
  },
}

SCSS

$custom: #3f7dca;
$custom-light: #83a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7dca",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 202
  },
  "hsl": {
    "h": 213.237,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58575,
    "c": 0.13493,
    "h": 255.1
  },
  "luminance": 0.19988
}

Semantic roles & 50–950 ramp

primary

#3F7DCA

secondary

#D1B694

accent

#9C48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #3F7DCA

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

Preview Lab → · Contrast checker → · Palette generator →