#3F7BCA#3F7BCA

#3F7BCA is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.137 H 256.2°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BCA
RGB	rgb(63, 123, 202)
HSL	hsl(214, 57%, 52%)
HSV	hsv(214, 69%, 79%)
CMYK	cmyk(68.8%, 39.1%, 0%, 20.8%)
CIE-LAB	lab(51.25, 6.48, -46.72)
CIE-LCH	lch(51.25, 47.17, 277.90°)
OKLab	oklab(58.13% -0.0327 -0.1331)
OKLCH	oklch(58.13% 0.137 256.2)
XYZ	xyz(19.7896, 19.4849, 58.5837)
Luminance	0.1949 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BCA #CA8E3F

analogous

#3FC0CA #3F7BCA #493FCA

triadic

#3F7BCA #CA3F7B #7BCA3F

tetradic

#3F7BCA #CA3FC0 #CA8E3F #3FCA49

square

#3F7BCA #CA3FC0 #CA8E3F #3FCA49

split-complementary

#3F7BCA #CA493F #C0CA3F

monochromatic

#1F4270 #2C5EA0 #3F7BCA #6F9CD7 #9FBDE4

Accessibility & contrast

On white

4.29

#3F7BCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#3F7BCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BCA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BCA	#FFFFFF	#000000	##000000
##3F7BCA	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5781CD

Deuteranopia (green-blind)

#4274C8

Tritanopia (blue-blind)

#008D99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7bca;
/* rgb */ color: rgb(63, 123, 202);
/* oklch */ color: oklch(58.1% 0.137 256.2);

Tailwind

colors: {
  custom: {
    50: '#83a0da',
    500: '#3f7bca',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bca;
$custom-light: #83a0da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bca",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 202
  },
  "hsl": {
    "h": 214.101,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.58129,
    "c": 0.13706,
    "h": 256.2
  },
  "luminance": 0.19487
}

Semantic roles & 50–950 ramp

primary

#3F7BCA

secondary

#D1B794

accent

#9E48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7BCA

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

Preview Lab → · Contrast checker → · Palette generator →