#3F90BF#3F90BF

#3F90BF is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.4% C 0.106 H 237.4°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F90BF
RGB	rgb(63, 144, 191)
HSL	hsl(202, 50%, 50%)
HSV	hsv(202, 67%, 75%)
CMYK	cmyk(67%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(56.84, -9.69, -31.67)
CIE-LCH	lch(56.84, 33.12, 252.99°)
OKLab	oklab(62.35% -0.057 -0.089)
OKLCH	oklch(62.35% 0.106 237.4)
XYZ	xyz(21.4235, 24.7626, 52.9307)
Luminance	0.2477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90BF #BF6E3F

analogous

#3FBFAE #3F90BF #3F50BF

triadic

#3F90BF #BF3F90 #90BF3F

tetradic

#3F90BF #AE3FBF #BF6E3F #50BF3F

square

#3F90BF #AE3FBF #BF6E3F #50BF3F

split-complementary

#3F90BF #BF3F50 #BFAE3F

monochromatic

#214B63 #306D91 #3F90BF #6DABCF #9BC5DE

Accessibility & contrast

On white

3.53

#3F90BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#3F90BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90BF

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90BF	#FFFFFF	#000000	##000000
##3F90BF	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8FC1

Deuteranopia (green-blind)

#6883BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f90bf;
/* rgb */ color: rgb(63, 144, 191);
/* oklch */ color: oklch(62.4% 0.106 237.4);

Tailwind

colors: {
  custom: {
    50: '#82b0d2',
    500: '#3f90bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f90bf;
$custom-light: #82b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90bf",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 202.031,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.62353,
    "c": 0.10569,
    "h": 237.4
  },
  "luminance": 0.24765
}

Semantic roles & 50–950 ramp

primary

#3F90BF

secondary

#CAA590

accent

#814EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #3F90BF

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

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