#3F90B2#3F90B2

#3F90B2 is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.7% C 0.093 H 228.7°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F90B2
RGB	rgb(63, 144, 178)
HSL	hsl(198, 48%, 47%)
HSV	hsv(198, 65%, 70%)
CMYK	cmyk(64.6%, 19.1%, 0%, 30.2%)
CIE-LAB	lab(56.30, -13.98, -25.11)
CIE-LCH	lch(56.30, 28.74, 240.90°)
OKLab	oklab(61.75% -0.0616 -0.0702)
OKLCH	oklch(61.75% 0.093 228.7)
XYZ	xyz(20.0559, 24.2155, 45.7280)
Luminance	0.2422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90B2 #B2613F

analogous

#3FB29B #3F90B2 #3F57B2

triadic

#3F90B2 #B23F90 #90B23F

tetradic

#3F90B2 #9B3FB2 #B2613F #57B23F

square

#3F90B2 #9B3FB2 #B2613F #57B23F

split-complementary

#3F90B2 #B23F57 #B29B3F

monochromatic

#1F4758 #2F6B85 #3F90B2 #66ABC9 #93C4D9

Accessibility & contrast

On white

3.59

#3F90B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#3F90B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90B2

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90B2	#FFFFFF	#000000	##000000
##3F90B2	1.00	3.59	5.84	5.84
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB4

Deuteranopia (green-blind)

#6E82B2

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f90b2;
/* rgb */ color: rgb(63, 144, 178);
/* oklch */ color: oklch(61.7% 0.093 228.7);

Tailwind

colors: {
  custom: {
    50: '#80b0c9',
    500: '#3f90b2',
    950: '#000000',
  },
}

SCSS

$custom: #3f90b2;
$custom-light: #80b0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90b2",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 178
  },
  "hsl": {
    "h": 197.739,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.61745,
    "c": 0.09341,
    "h": 228.7
  },
  "luminance": 0.24218
}

Semantic roles & 50–950 ramp

primary

#3F90B2

secondary

#C49A89

accent

#7850D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F90B2

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

Preview Lab → · Contrast checker → · Palette generator →