#3997AA#3997AA

#3997AA is a light, moderate cyan. Relative luminance 0.259; OKLCH L 62.9% C 0.091 H 213.5°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3997AA
RGB	rgb(57, 151, 170)
HSL	hsl(190, 50%, 45%)
HSV	hsv(190, 66%, 67%)
CMYK	cmyk(66.5%, 11.2%, 0%, 33.3%)
CIE-LAB	lab(57.95, -21.30, -18.06)
CIE-LCH	lch(57.95, 27.93, 220.29°)
OKLab	oklab(62.91% -0.0758 -0.0502)
OKLCH	oklch(62.91% 0.091 213.5)
XYZ	xyz(20.0066, 25.9032, 41.9678)
Luminance	0.2591 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3997AA #AA4C39

analogous

#39AA84 #3997AA #395FAA

triadic

#3997AA #AA3997 #97AA39

tetradic

#3997AA #8439AA #AA4C39 #5FAA39

square

#3997AA #8439AA #AA4C39 #5FAA39

split-complementary

#3997AA #AA395F #AA8439

monochromatic

#1A464E #2A6E7C #3997AA #59B5C7 #87C9D7

Accessibility & contrast

On white

3.40

#3997AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#3997AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3997AA

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3997AA	#FFFFFF	#000000	##000000
##3997AA	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8992AB

Deuteranopia (green-blind)

#7986AA

Tritanopia (blue-blind)

#009E9D

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3997aa;
/* rgb */ color: rgb(57, 151, 170);
/* oklch */ color: oklch(62.9% 0.091 213.5);

Tailwind

colors: {
  custom: {
    50: '#7db5c3',
    500: '#3997aa',
    950: '#000000',
  },
}

SCSS

$custom: #3997aa;
$custom-light: #7db5c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3997aa",
  "rgb": {
    "r": 57,
    "g": 151,
    "b": 170
  },
  "hsl": {
    "h": 190.088,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.62908,
    "c": 0.0909,
    "h": 213.5
  },
  "luminance": 0.25905
}

Semantic roles & 50–950 ramp

primary

#3997AA

secondary

#C1897E

accent

#664ED9

background

#F8FBFB

surface

#EFF6F7

border

#CAD0D0

text

#0B1112

muted

#7C8081

Preview Lab

Preview with #3997AA

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

Preview Lab → · Contrast checker → · Palette generator →