#3F89B9#3F89B9

#3F89B9 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.4% C 0.104 H 240.1°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F89B9
RGB	rgb(63, 137, 185)
HSL	hsl(204, 49%, 49%)
HSV	hsv(204, 66%, 73%)
CMYK	cmyk(65.9%, 25.9%, 0%, 27.5%)
CIE-LAB	lab(54.50, -7.73, -31.90)
CIE-LCH	lch(54.50, 32.83, 256.38°)
OKLab	oklab(60.41% -0.0517 -0.0898)
OKLCH	oklch(60.41% 0.104 240.1)
XYZ	xyz(19.7492, 22.4488, 49.1818)
Luminance	0.2245 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F89B9 #B96F3F

analogous

#3FB9AC #3F89B9 #3F4CB9

triadic

#3F89B9 #B93F89 #89B93F

tetradic

#3F89B9 #AC3FB9 #B96F3F #4CB93F

square

#3F89B9 #AC3FB9 #B96F3F #4CB93F

split-complementary

#3F89B9 #B93F4C #B9AC3F

monochromatic

#20455E #2F678B #3F89B9 #69A5CC #97C1DC

Accessibility & contrast

On white

3.82

#3F89B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#3F89B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F89B9

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F89B9	#FFFFFF	#000000	##000000
##3F89B9	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7389BB

Deuteranopia (green-blind)

#627DB8

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f89b9;
/* rgb */ color: rgb(63, 137, 185);
/* oklch */ color: oklch(60.4% 0.104 240.1);

Tailwind

colors: {
  custom: {
    50: '#81abce',
    500: '#3f89b9',
    950: '#000000',
  },
}

SCSS

$custom: #3f89b9;
$custom-light: #81abce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f89b9",
  "rgb": {
    "r": 63,
    "g": 137,
    "b": 185
  },
  "hsl": {
    "h": 203.607,
    "s": 49.194,
    "l": 48.627
  },
  "oklch": {
    "l": 0.60408,
    "c": 0.10359,
    "h": 240.1
  },
  "luminance": 0.22451
}

Semantic roles & 50–950 ramp

primary

#3F89B9

secondary

#C7A48D

accent

#854FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F89B9

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

Preview Lab → · Contrast checker → · Palette generator →