#3971A8#3971A8

#3971A8 is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.6% C 0.105 H 250.0°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3971A8
RGB	rgb(57, 113, 168)
HSL	hsl(210, 49%, 44%)
HSV	hsv(210, 66%, 66%)
CMYK	cmyk(66.1%, 32.7%, 0%, 34.1%)
CIE-LAB	lab(46.32, -0.49, -34.90)
CIE-LCH	lch(46.32, 34.91, 269.20°)
OKLab	oklab(53.63% -0.0359 -0.0987)
OKLCH	oklch(53.63% 0.105 250)
XYZ	xyz(14.6577, 15.5058, 39.2586)
Luminance	0.1551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3971A8 #A87039

analogous

#39A8A8 #3971A8 #393AA8

triadic

#3971A8 #A83971 #71A839

tetradic

#3971A8 #A839A8 #A87039 #3AA839

square

#3971A8 #A839A8 #A87039 #3AA839

split-complementary

#3971A8 #A8393A #A8A839

monochromatic

#1A344D #29527A #3971A8 #5890C6 #86AED6

Accessibility & contrast

On white

5.12

#3971A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3971A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3971A8

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3971A8	#FFFFFF	#000000	##FFFFFF
##3971A8	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5974AA

Deuteranopia (green-blind)

#4A69A7

Tritanopia (blue-blind)

#007E85

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3971a8;
/* rgb */ color: rgb(57, 113, 168);
/* oklch */ color: oklch(53.6% 0.105 250.0);

Tailwind

colors: {
  custom: {
    50: '#7b99c2',
    500: '#3971a8',
    950: '#000000',
  },
}

SCSS

$custom: #3971a8;
$custom-light: #7b99c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3971a8",
  "rgb": {
    "r": 57,
    "g": 113,
    "b": 168
  },
  "hsl": {
    "h": 209.73,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53631,
    "c": 0.10507,
    "h": 250
  },
  "luminance": 0.15507
}

Semantic roles & 50–950 ramp

primary

#3971A8

secondary

#C09E7D

accent

#934FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #3971A8

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

Preview Lab → · Contrast checker → · Palette generator →