#3988AA#3988AA

#3988AA is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.2% C 0.092 H 229.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3988AA
RGB	rgb(57, 136, 170)
HSL	hsl(198, 50%, 45%)
HSV	hsv(198, 66%, 67%)
CMYK	cmyk(66.5%, 20%, 0%, 33.3%)
CIE-LAB	lab(53.36, -13.21, -25.09)
CIE-LCH	lch(53.36, 28.35, 242.24°)
OKLab	oklab(59.24% -0.0598 -0.0702)
OKLCH	oklch(59.24% 0.092 229.6)
XYZ	xyz(17.7443, 21.3786, 41.2137)
Luminance	0.2138 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3988AA #AA5B39

analogous

#39AA94 #3988AA #3950AA

triadic

#3988AA #AA3988 #88AA39

tetradic

#3988AA #9439AA #AA5B39 #50AA39

square

#3988AA #9439AA #AA5B39 #50AA39

split-complementary

#3988AA #AA3950 #AA9439

monochromatic

#1A3F4E #2A637C #3988AA #59A6C7 #87BFD7

Accessibility & contrast

On white

3.98

#3988AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3988AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3988AA

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3988AA	#FFFFFF	#000000	##000000
##3988AA	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7786AC

Deuteranopia (green-blind)

#677AAA

Tritanopia (blue-blind)

#009293

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3988aa;
/* rgb */ color: rgb(57, 136, 170);
/* oklch */ color: oklch(59.2% 0.092 229.6);

Tailwind

colors: {
  custom: {
    50: '#7caac3',
    500: '#3988aa',
    950: '#000000',
  },
}

SCSS

$custom: #3988aa;
$custom-light: #7caac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3988aa",
  "rgb": {
    "r": 57,
    "g": 136,
    "b": 170
  },
  "hsl": {
    "h": 198.053,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59237,
    "c": 0.09221,
    "h": 229.6
  },
  "luminance": 0.2138
}

Semantic roles & 50–950 ramp

primary

#3988AA

secondary

#C1927E

accent

#784ED9

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3988AA

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

Preview Lab → · Contrast checker → · Palette generator →