#3981DD#3981DD

#3981DD is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.4% C 0.157 H 256.0°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3981DD
RGB	rgb(57, 129, 221)
HSL	hsl(214, 71%, 55%)
HSV	hsv(214, 74%, 87%)
CMYK	cmyk(74.2%, 41.6%, 0%, 13.3%)
CIE-LAB	lab(53.80, 8.82, -53.42)
CIE-LCH	lch(53.80, 54.14, 279.37°)
OKLab	oklab(60.4% -0.0381 -0.1527)
OKLCH	oklch(60.4% 0.157 256)
XYZ	xyz(22.5839, 21.7883, 71.4079)
Luminance	0.2179 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981DD #DD9539

analogous

#39D3DD #3981DD #4339DD

triadic

#3981DD #DD3981 #81DD39

tetradic

#3981DD #DD39D3 #DD9539 #39DD43

square

#3981DD #DD39D3 #DD9539 #39DD43

split-complementary

#3981DD #DD4339 #D3DD39

monochromatic

#174785 #2063B9 #3981DD #6DA2E6 #A1C3EF

Accessibility & contrast

On white

3.92

#3981DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#3981DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981DD

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981DD	#FFFFFF	#000000	##000000
##3981DD	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E1

Deuteranopia (green-blind)

#387ADB

Tritanopia (blue-blind)

#0097A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3981dd;
/* rgb */ color: rgb(57, 129, 221);
/* oklch */ color: oklch(60.4% 0.157 256.0);

Tailwind

colors: {
  custom: {
    50: '#84a5e8',
    500: '#3981dd',
    950: '#000000',
  },
}

SCSS

$custom: #3981dd;
$custom-light: #84a5e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3981dd",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 221
  },
  "hsl": {
    "h": 213.659,
    "s": 70.69,
    "l": 54.51
  },
  "oklch": {
    "l": 0.60398,
    "c": 0.15742,
    "h": 256
  },
  "luminance": 0.21791
}

Semantic roles & 50–950 ramp

primary

#3981DD

secondary

#DCBD96

accent

#9F3AED

background

#F8FAFE

surface

#F0F4FD

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3981DD

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

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