#3990D5#3990D5

#3990D5 is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.3% C 0.133 H 246.2°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3990D5
RGB	rgb(57, 144, 213)
HSL	hsl(207, 65%, 53%)
HSV	hsv(207, 73%, 84%)
CMYK	cmyk(73.2%, 32.4%, 0%, 16.5%)
CIE-LAB	lab(57.67, -3.00, -42.78)
CIE-LCH	lch(57.67, 42.89, 265.99°)
OKLab	oklab(63.29% -0.0536 -0.1213)
OKLCH	oklch(63.29% 0.133 246.2)
XYZ	xyz(23.6662, 25.6178, 66.6353)
Luminance	0.2562 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3990D5 #D57E39

analogous

#39D5CC #3990D5 #3942D5

triadic

#3990D5 #D53990 #90D539

tetradic

#3990D5 #CC39D5 #D57E39 #42D539

square

#3990D5 #CC39D5 #D57E39 #42D539

split-complementary

#3990D5 #D53942 #D5CC39

monochromatic

#1A4F7A #2570AC #3990D5 #6BACE0 #9EC9EA

Accessibility & contrast

On white

3.43

#3990D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#3990D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990D5

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3990D5	#FFFFFF	#000000	##000000
##3990D5	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7093D8

Deuteranopia (green-blind)

#5A84D4

Tritanopia (blue-blind)

#00A1A9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3990d5;
/* rgb */ color: rgb(57, 144, 213);
/* oklch */ color: oklch(63.3% 0.133 246.2);

Tailwind

colors: {
  custom: {
    50: '#83b0e2',
    500: '#3990d5',
    950: '#000000',
  },
}

SCSS

$custom: #3990d5;
$custom-light: #83b0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3990d5",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 213
  },
  "hsl": {
    "h": 206.538,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.6329,
    "c": 0.13267,
    "h": 246.2
  },
  "luminance": 0.2562
}

Semantic roles & 50–950 ramp

primary

#3990D5

secondary

#D7B193

accent

#8A40E8

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3990D5

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

Preview Lab → · Contrast checker → · Palette generator →