#3971BA#3971BA

#3971BA is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.7% C 0.129 H 256.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3971BA
RGB	rgb(57, 113, 186)
HSL	hsl(214, 53%, 48%)
HSV	hsv(214, 69%, 73%)
CMYK	cmyk(69.4%, 39.2%, 0%, 27.1%)
CIE-LAB	lab(47.27, 5.95, -43.88)
CIE-LCH	lch(47.27, 44.28, 277.73°)
OKLab	oklab(54.68% -0.0312 -0.125)
OKLCH	oklch(54.68% 0.129 256)
XYZ	xyz(16.4522, 16.2236, 48.7093)
Luminance	0.1623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3971BA #BA8239

analogous

#39B2BA #3971BA #4139BA

triadic

#3971BA #BA3971 #71BA39

tetradic

#3971BA #BA39B2 #BA8239 #39BA41

square

#3971BA #BA39B2 #BA8239 #39BA41

split-complementary

#3971BA #BA4139 #B2BA39

monochromatic

#1C385C #2B558B #3971BA #6191CF #90B2DD

Accessibility & contrast

On white

4.95

#3971BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3971BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3971BA

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3971BA	#FFFFFF	#000000	##FFFFFF
##3971BA	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BD

Deuteranopia (green-blind)

#3C6BB9

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3971ba;
/* rgb */ color: rgb(57, 113, 186);
/* oklch */ color: oklch(54.7% 0.129 256.0);

Tailwind

colors: {
  custom: {
    50: '#7e99cf',
    500: '#3971ba',
    950: '#000000',
  },
}

SCSS

$custom: #3971ba;
$custom-light: #7e99cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3971ba",
  "rgb": {
    "r": 57,
    "g": 113,
    "b": 186
  },
  "hsl": {
    "h": 213.953,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5468,
    "c": 0.12883,
    "h": 256
  },
  "luminance": 0.16225
}

Semantic roles & 50–950 ramp

primary

#3971BA

secondary

#C8AC87

accent

#9D4BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3971BA

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

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