#3977A4#3977A4

#3977A4 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.8% C 0.095 H 242.7°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3977A4
RGB	rgb(57, 119, 164)
HSL	hsl(205, 48%, 43%)
HSV	hsv(205, 65%, 64%)
CMYK	cmyk(65.2%, 27.4%, 0%, 35.7%)
CIE-LAB	lab(47.93, -5.48, -30.03)
CIE-LCH	lch(47.93, 30.53, 259.66°)
OKLab	oklab(54.84% -0.0436 -0.0845)
OKLCH	oklch(54.84% 0.095 242.7)
XYZ	xyz(14.9825, 16.7423, 37.5568)
Luminance	0.1674 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977A4 #A46639

analogous

#39A49B #3977A4 #3941A4

triadic

#3977A4 #A43977 #77A439

tetradic

#3977A4 #9B39A4 #A46639 #41A439

square

#3977A4 #9B39A4 #A46639 #41A439

split-complementary

#3977A4 #A43941 #A49B39

monochromatic

#193549 #295677 #3977A4 #5696C4 #83B2D4

Accessibility & contrast

On white

4.83

#3977A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3977A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977A4

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977A4	#FFFFFF	#000000	##FFFFFF
##3977A4	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6378A6

Deuteranopia (green-blind)

#546DA3

Tritanopia (blue-blind)

#008287

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3977a4;
/* rgb */ color: rgb(57, 119, 164);
/* oklch */ color: oklch(54.8% 0.095 242.7);

Tailwind

colors: {
  custom: {
    50: '#7a9ebf',
    500: '#3977a4',
    950: '#000000',
  },
}

SCSS

$custom: #3977a4;
$custom-light: #7a9ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#3977a4",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 164
  },
  "hsl": {
    "h": 205.234,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5484,
    "c": 0.09513,
    "h": 242.7
  },
  "luminance": 0.16744
}

Semantic roles & 50–950 ramp

primary

#3977A4

secondary

#BE977B

accent

#8950D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977A4

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

Preview Lab → · Contrast checker → · Palette generator →