#3F89DB#3F89DB

#3F89DB is a light, vivid cyan. Relative luminance 0.241; OKLCH L 62.2% C 0.144 H 253.1°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F89DB
RGB	rgb(63, 137, 219)
HSL	hsl(212, 68%, 55%)
HSV	hsv(212, 71%, 86%)
CMYK	cmyk(71.2%, 37.4%, 0%, 14.1%)
CIE-LAB	lab(56.15, 4.07, -48.55)
CIE-LCH	lch(56.15, 48.72, 274.79°)
OKLab	oklab(62.25% -0.0419 -0.1382)
OKLCH	oklch(62.25% 0.144 253.1)
XYZ	xyz(23.7770, 24.0600, 70.3950)
Luminance	0.2406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F89DB #DB913F

analogous

#3FD7DB #3F89DB #433FDB

triadic

#3F89DB #DB3F89 #89DB3F

tetradic

#3F89DB #DB3FD7 #DB913F #3FDB43

square

#3F89DB #DB3FD7 #DB913F #3FDB43

split-complementary

#3F89DB #DB433F #D7DB3F

monochromatic

#194D86 #236BBA #3F89DB #73A9E5 #A6C8EE

Accessibility & contrast

On white

3.61

#3F89DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#3F89DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F89DB

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F89DB	#FFFFFF	#000000	##000000
##3F89DB	1.00	3.61	5.81	5.81
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638FDE

Deuteranopia (green-blind)

#4C80D9

Tritanopia (blue-blind)

#009CA7

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f89db;
/* rgb */ color: rgb(63, 137, 219);
/* oklch */ color: oklch(62.2% 0.144 253.1);

Tailwind

colors: {
  custom: {
    50: '#86abe6',
    500: '#3f89db',
    950: '#000000',
  },
}

SCSS

$custom: #3f89db;
$custom-light: #86abe6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f89db",
  "rgb": {
    "r": 63,
    "g": 137,
    "b": 219
  },
  "hsl": {
    "h": 211.538,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.62245,
    "c": 0.14445,
    "h": 253.1
  },
  "luminance": 0.24063
}

Semantic roles & 50–950 ramp

primary

#3F89DB

secondary

#DCBD9A

accent

#983DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F89DB

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

Preview Lab → · Contrast checker → · Palette generator →