#3F7BC4#3F7BC4

#3F7BC4 is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.8% C 0.129 H 254.7°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BC4
RGB	rgb(63, 123, 196)
HSL	hsl(213, 53%, 51%)
HSV	hsv(213, 68%, 77%)
CMYK	cmyk(67.9%, 37.2%, 0%, 23.1%)
CIE-LAB	lab(50.93, 4.35, -43.81)
CIE-LCH	lch(50.93, 44.02, 275.67°)
OKLab	oklab(57.77% -0.0342 -0.1245)
OKLCH	oklch(57.77% 0.129 254.7)
XYZ	xyz(19.0930, 19.2062, 54.9148)
Luminance	0.1921 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BC4 #C4883F

analogous

#3FBEC4 #3F7BC4 #453FC4

triadic

#3F7BC4 #C43F7B #7BC43F

tetradic

#3F7BC4 #C43FBE #C4883F #3FC445

square

#3F7BC4 #C43FBE #C4883F #3FC445

split-complementary

#3F7BC4 #C4453F #BEC43F

monochromatic

#204168 #2E5E97 #3F7BC4 #6E9BD2 #9DBBE1

Accessibility & contrast

On white

4.34

#3F7BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3F7BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BC4

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BC4	#FFFFFF	#000000	##000000
##3F7BC4	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A80C7

Deuteranopia (green-blind)

#4774C3

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7bc4;
/* rgb */ color: rgb(63, 123, 196);
/* oklch */ color: oklch(57.8% 0.129 254.7);

Tailwind

colors: {
  custom: {
    50: '#82a0d6',
    500: '#3f7bc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bc4;
$custom-light: #82a0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bc4",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 196
  },
  "hsl": {
    "h": 212.932,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57773,
    "c": 0.12915,
    "h": 254.7
  },
  "luminance": 0.19208
}

Semantic roles & 50–950 ramp

primary

#3F7BC4

secondary

#CDB292

accent

#9B4BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F7BC4

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

Preview Lab → · Contrast checker → · Palette generator →