#3977AA#3977AA

#3977AA is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.102 H 246.0°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3977AA
RGB	rgb(57, 119, 170)
HSL	hsl(207, 50%, 45%)
HSV	hsv(207, 66%, 67%)
CMYK	cmyk(66.5%, 30%, 0%, 33.3%)
CIE-LAB	lab(48.21, -3.40, -33.09)
CIE-LCH	lch(48.21, 33.27, 264.13°)
OKLab	oklab(55.15% -0.0417 -0.0934)
OKLCH	oklch(55.15% 0.102 246)
XYZ	xyz(15.5371, 16.9642, 40.4780)
Luminance	0.1697 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977AA #AA6C39

analogous

#39AAA5 #3977AA #393EAA

triadic

#3977AA #AA3977 #77AA39

tetradic

#3977AA #A539AA #AA6C39 #3EAA39

square

#3977AA #A539AA #AA6C39 #3EAA39

split-complementary

#3977AA #AA393E #AAA539

monochromatic

#1A374E #2A577C #3977AA #5995C7 #87B3D7

Accessibility & contrast

On white

4.78

#3977AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3977AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977AA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977AA	#FFFFFF	#000000	##FFFFFF
##3977AA	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AC

Deuteranopia (green-blind)

#516EA9

Tritanopia (blue-blind)

#008389

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3977aa;
/* rgb */ color: rgb(57, 119, 170);
/* oklch */ color: oklch(55.2% 0.102 246.0);

Tailwind

colors: {
  custom: {
    50: '#7b9ec3',
    500: '#3977aa',
    950: '#000000',
  },
}

SCSS

$custom: #3977aa;
$custom-light: #7b9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3977aa",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 170
  },
  "hsl": {
    "h": 207.08,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55154,
    "c": 0.1023,
    "h": 246
  },
  "luminance": 0.16966
}

Semantic roles & 50–950 ramp

primary

#3977AA

secondary

#C19C7E

accent

#8D4ED9

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977AA

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

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