#3977AB#3977AB

#3977AB is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.104 H 246.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3977AB
RGB	rgb(57, 119, 171)
HSL	hsl(207, 50%, 45%)
HSV	hsv(207, 67%, 67%)
CMYK	cmyk(66.7%, 30.4%, 0%, 32.9%)
CIE-LAB	lab(48.26, -3.05, -33.60)
CIE-LCH	lch(48.26, 33.74, 264.81°)
OKLab	oklab(55.21% -0.0413 -0.0949)
OKLCH	oklch(55.21% 0.104 246.5)
XYZ	xyz(15.6321, 17.0022, 40.9781)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977AB #AB6D39

analogous

#39ABA6 #3977AB #393EAB

triadic

#3977AB #AB3977 #77AB39

tetradic

#3977AB #A639AB #AB6D39 #3EAB39

square

#3977AB #A639AB #AB6D39 #3EAB39

split-complementary

#3977AB #AB393E #ABA639

monochromatic

#1A374F #2A577D #3977AB #5995C8 #87B3D7

Accessibility & contrast

On white

4.77

#3977AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3977AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977AB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977AB	#FFFFFF	#000000	##FFFFFF
##3977AB	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AD

Deuteranopia (green-blind)

#506EAA

Tritanopia (blue-blind)

#008389

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3977ab;
/* rgb */ color: rgb(57, 119, 171);
/* oklch */ color: oklch(55.2% 0.104 246.5);

Tailwind

colors: {
  custom: {
    50: '#7c9ec4',
    500: '#3977ab',
    950: '#000000',
  },
}

SCSS

$custom: #3977ab;
$custom-light: #7c9ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#3977ab",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 171
  },
  "hsl": {
    "h": 207.368,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55208,
    "c": 0.10352,
    "h": 246.5
  },
  "luminance": 0.17004
}

Semantic roles & 50–950 ramp

primary

#3977AB

secondary

#C19D7F

accent

#8E4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977AB

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

Preview Lab → · Contrast checker → · Palette generator →