#3F90CA#3F90CA

#3F90CA is a light, moderate cyan. Relative luminance 0.253; OKLCH L 62.9% C 0.118 H 243.0°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F90CA
RGB	rgb(63, 144, 202)
HSL	hsl(205, 57%, 52%)
HSV	hsv(205, 69%, 79%)
CMYK	cmyk(68.8%, 28.7%, 0%, 20.8%)
CIE-LAB	lab(57.33, -5.96, -37.12)
CIE-LCH	lch(57.33, 37.60, 260.87°)
OKLab	oklab(62.9% -0.0534 -0.1048)
OKLCH	oklch(62.9% 0.118 243)
XYZ	xyz(22.6798, 25.2651, 59.5470)
Luminance	0.2527 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90CA #CA793F

analogous

#3FCABF #3F90CA #3F4BCA

triadic

#3F90CA #CA3F90 #90CA3F

tetradic

#3F90CA #BF3FCA #CA793F #4BCA3F

square

#3F90CA #BF3FCA #CA793F #4BCA3F

split-complementary

#3F90CA #CA3F4B #CABF3F

monochromatic

#1F4E70 #2C6FA0 #3F90CA #6FACD7 #9FC7E4

Accessibility & contrast

On white

3.47

#3F90CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#3F90CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90CA

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90CA	#FFFFFF	#000000	##000000
##3F90CA	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7691CD

Deuteranopia (green-blind)

#6384C9

Tritanopia (blue-blind)

#009EA4

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f90ca;
/* rgb */ color: rgb(63, 144, 202);
/* oklch */ color: oklch(62.9% 0.118 243.0);

Tailwind

colors: {
  custom: {
    50: '#84b0da',
    500: '#3f90ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f90ca;
$custom-light: #84b0da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90ca",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 202
  },
  "hsl": {
    "h": 205.036,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.62902,
    "c": 0.11762,
    "h": 243
  },
  "luminance": 0.25268
}

Semantic roles & 50–950 ramp

primary

#3F90CA

secondary

#D1AD94

accent

#8748E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F90CA

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

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