#3988CF#3988CF

#3988CF is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.1% C 0.133 H 248.9°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3988CF
RGB	rgb(57, 136, 207)
HSL	hsl(208, 61%, 52%)
HSV	hsv(208, 72%, 81%)
CMYK	cmyk(72.5%, 34.3%, 0%, 18.8%)
CIE-LAB	lab(55.05, -0.43, -43.54)
CIE-LCH	lch(55.05, 43.54, 269.43°)
OKLab	oklab(61.13% -0.0478 -0.1237)
OKLCH	oklch(61.13% 0.133 248.9)
XYZ	xyz(21.7497, 22.9807, 62.3088)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988CF #CF8039

analogous

#39CFCB #3988CF #393DCF

triadic

#3988CF #CF3988 #88CF39

tetradic

#3988CF #CB39CF #CF8039 #3DCF39

square

#3988CF #CB39CF #CF8039 #3DCF39

split-complementary

#3988CF #CF393D #CFCB39

monochromatic

#1C4972 #2869A3 #3988CF #6AA6DB #9CC3E7

Accessibility & contrast

On white

3.75

#3988CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#3988CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988CF

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988CF	#FFFFFF	#000000	##000000
##3988CF	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#688BD2

Deuteranopia (green-blind)

#527DCE

Tritanopia (blue-blind)

#0099A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3988cf;
/* rgb */ color: rgb(57, 136, 207);
/* oklch */ color: oklch(61.1% 0.133 248.9);

Tailwind

colors: {
  custom: {
    50: '#82aade',
    500: '#3988cf',
    950: '#000000',
  },
}

SCSS

$custom: #3988cf;
$custom-light: #82aade;
$custom-dark: #000000;

JSON

{
  "hex": "#3988cf",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 207
  },
  "hsl": {
    "h": 208.4,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.61131,
    "c": 0.1326,
    "h": 248.9
  },
  "luminance": 0.22983
}

Semantic roles & 50–950 ramp

primary

#3988CF

secondary

#D3B091

accent

#9044E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3988CF

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

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