#3F90D9#3F90D9

#3F90D9 is a light, vivid cyan. Relative luminance 0.260; OKLCH L 63.7% C 0.135 H 248.8°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F90D9
RGB	rgb(63, 144, 217)
HSL	hsl(208, 67%, 55%)
HSV	hsv(208, 71%, 85%)
CMYK	cmyk(71%, 33.6%, 0%, 14.9%)
CIE-LAB	lab(58.05, -0.77, -44.42)
CIE-LCH	lch(58.05, 44.43, 269.00°)
OKLab	oklab(63.7% -0.049 -0.1261)
OKLCH	oklch(63.7% 0.135 248.8)
XYZ	xyz(24.5428, 26.0103, 69.3592)
Luminance	0.2601 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90D9 #D9883F

analogous

#3FD9D5 #3F90D9 #3F43D9

triadic

#3F90D9 #D93F90 #90D93F

tetradic

#3F90D9 #D53FD9 #D9883F #43D93F

square

#3F90D9 #D53FD9 #D9883F #43D93F

split-complementary

#3F90D9 #D93F43 #D9D53F

monochromatic

#1A5284 #2471B7 #3F90D9 #72AEE3 #A5CBED

Accessibility & contrast

On white

3.39

#3F90D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#3F90D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90D9

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90D9	#FFFFFF	#000000	##000000
##3F90D9	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F93DC

Deuteranopia (green-blind)

#5985D8

Tritanopia (blue-blind)

#00A1AA

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3f90d9;
/* rgb */ color: rgb(63, 144, 217);
/* oklch */ color: oklch(63.7% 0.135 248.8);

Tailwind

colors: {
  custom: {
    50: '#86b0e5',
    500: '#3f90d9',
    950: '#000000',
  },
}

SCSS

$custom: #3f90d9;
$custom-light: #86b0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90d9",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 217
  },
  "hsl": {
    "h": 208.442,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.63699,
    "c": 0.13525,
    "h": 248.8
  },
  "luminance": 0.26013
}

Semantic roles & 50–950 ramp

primary

#3F90D9

secondary

#DAB89A

accent

#8F3EEA

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F90D9

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

Preview Lab → · Contrast checker → · Palette generator →