#3971AA#3971AA

#3971AA is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.7% C 0.108 H 250.9°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3971AA
RGB	rgb(57, 113, 170)
HSL	hsl(210, 50%, 45%)
HSV	hsv(210, 66%, 67%)
CMYK	cmyk(66.5%, 33.5%, 0%, 33.3%)
CIE-LAB	lab(46.42, 0.22, -35.91)
CIE-LCH	lch(46.42, 35.91, 270.35°)
OKLab	oklab(53.74% -0.0353 -0.1017)
OKLCH	oklch(53.74% 0.108 250.9)
XYZ	xyz(14.8455, 15.5809, 40.2475)
Luminance	0.1558 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3971AA #AA7239

analogous

#39AAAA #3971AA #3939AA

triadic

#3971AA #AA3971 #71AA39

tetradic

#3971AA #AA39AA #AA7239 #39AA39

square

#3971AA #AA39AA #AA7239 #39AA39

split-complementary

#3971AA #AA3939 #AAAA39

monochromatic

#1A344E #2A537C #3971AA #5990C7 #87AED7

Accessibility & contrast

On white

5.10

#3971AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#3971AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3971AA

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3971AA	#FFFFFF	#000000	##FFFFFF
##3971AA	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5874AC

Deuteranopia (green-blind)

#4869A9

Tritanopia (blue-blind)

#007E86

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3971aa;
/* rgb */ color: rgb(57, 113, 170);
/* oklch */ color: oklch(53.7% 0.108 250.9);

Tailwind

colors: {
  custom: {
    50: '#7b99c3',
    500: '#3971aa',
    950: '#000000',
  },
}

SCSS

$custom: #3971aa;
$custom-light: #7b99c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3971aa",
  "rgb": {
    "r": 57,
    "g": 113,
    "b": 170
  },
  "hsl": {
    "h": 210.265,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53742,
    "c": 0.10766,
    "h": 250.9
  },
  "luminance": 0.15582
}

Semantic roles & 50–950 ramp

primary

#3971AA

secondary

#C1A07E

accent

#954ED9

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #3971AA

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

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