#3F7ECA#3F7ECA

#3F7ECA is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.8% C 0.134 H 254.6°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ECA
RGB	rgb(63, 126, 202)
HSL	hsl(213, 57%, 52%)
HSV	hsv(213, 69%, 79%)
CMYK	cmyk(68.8%, 37.6%, 0%, 20.8%)
CIE-LAB	lab(52.11, 4.65, -45.36)
CIE-LCH	lch(52.11, 45.59, 275.86°)
OKLab	oklab(58.8% -0.0356 -0.129)
OKLCH	oklch(58.8% 0.134 254.6)
XYZ	xyz(20.1675, 20.2406, 58.7096)
Luminance	0.2024 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ECA #CA8B3F

analogous

#3FC4CA #3F7ECA #463FCA

triadic

#3F7ECA #CA3F7E #7ECA3F

tetradic

#3F7ECA #CA3FC4 #CA8B3F #3FCA46

square

#3F7ECA #CA3FC4 #CA8B3F #3FCA46

split-complementary

#3F7ECA #CA463F #C4CA3F

monochromatic

#1F4470 #2C60A0 #3F7ECA #6F9ED7 #9FBEE4

Accessibility & contrast

On white

4.16

#3F7ECA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3F7ECA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ECA

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ECA	#FFFFFF	#000000	##000000
##3F7ECA	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C83CD

Deuteranopia (green-blind)

#4776C8

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7eca;
/* rgb */ color: rgb(63, 126, 202);
/* oklch */ color: oklch(58.8% 0.134 254.6);

Tailwind

colors: {
  custom: {
    50: '#83a2da',
    500: '#3f7eca',
    950: '#000000',
  },
}

SCSS

$custom: #3f7eca;
$custom-light: #83a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7eca",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 202
  },
  "hsl": {
    "h": 212.806,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58798,
    "c": 0.13388,
    "h": 254.6
  },
  "luminance": 0.20243
}

Semantic roles & 50–950 ramp

primary

#3F7ECA

secondary

#D1B594

accent

#9B48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #3F7ECA

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

Preview Lab → · Contrast checker → · Palette generator →