#3F99CA#3F99CA

#3F99CA is a light, moderate cyan. Relative luminance 0.281; OKLCH L 65.0% C 0.112 H 236.1°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F99CA
RGB	rgb(63, 153, 202)
HSL	hsl(201, 57%, 52%)
HSV	hsv(201, 69%, 79%)
CMYK	cmyk(68.8%, 24.3%, 0%, 20.8%)
CIE-LAB	lab(59.98, -11.04, -32.99)
CIE-LCH	lch(59.98, 34.79, 251.49°)
OKLab	oklab(65% -0.0624 -0.0928)
OKLCH	oklch(65% 0.112 236.1)
XYZ	xyz(24.0976, 28.1009, 60.0197)
Luminance	0.2810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99CA #CA703F

analogous

#3FCAB6 #3F99CA #3F54CA

triadic

#3F99CA #CA3F99 #99CA3F

tetradic

#3F99CA #B63FCA #CA703F #54CA3F

square

#3F99CA #B63FCA #CA703F #54CA3F

split-complementary

#3F99CA #CA3F54 #CAB63F

monochromatic

#1F5370 #2C77A0 #3F99CA #6FB2D7 #9FCCE4

Accessibility & contrast

On white

3.17

#3F99CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#3F99CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99CA

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99CA	#FFFFFF	#000000	##000000
##3F99CA	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8298CC

Deuteranopia (green-blind)

#6F8AC9

Tritanopia (blue-blind)

#00A6AA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f99ca;
/* rgb */ color: rgb(63, 153, 202);
/* oklch */ color: oklch(65.0% 0.112 236.1);

Tailwind

colors: {
  custom: {
    50: '#84b7da',
    500: '#3f99ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f99ca;
$custom-light: #84b7da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99ca",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 202
  },
  "hsl": {
    "h": 201.151,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.65001,
    "c": 0.11181,
    "h": 236.1
  },
  "luminance": 0.28103
}

Semantic roles & 50–950 ramp

primary

#3F99CA

secondary

#D1A994

accent

#7D48E0

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99CA

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

Preview Lab → · Contrast checker → · Palette generator →