#3977A1#3977A1

#3977A1 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.7% C 0.092 H 240.9°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3977A1
RGB	rgb(57, 119, 161)
HSL	hsl(204, 48%, 43%)
HSV	hsv(204, 65%, 63%)
CMYK	cmyk(64.6%, 26.1%, 0%, 36.9%)
CIE-LAB	lab(47.80, -6.51, -28.49)
CIE-LCH	lch(47.80, 29.22, 257.13°)
OKLab	oklab(54.69% -0.0446 -0.0801)
OKLCH	oklch(54.69% 0.092 240.9)
XYZ	xyz(14.7148, 16.6352, 36.1468)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977A1 #A16339

analogous

#39A197 #3977A1 #3943A1

triadic

#3977A1 #A13977 #77A139

tetradic

#3977A1 #9739A1 #A16339 #43A139

square

#3977A1 #9739A1 #A16339 #43A139

split-complementary

#3977A1 #A13943 #A19739

monochromatic

#193447 #295674 #3977A1 #5596C3 #82B2D3

Accessibility & contrast

On white

4.85

#3977A1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3977A1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3977A1

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977A1	#FFFFFF	#000000	##FFFFFF
##3977A1	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6477A3

Deuteranopia (green-blind)

#566DA0

Tritanopia (blue-blind)

#008185

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3977a1;
/* rgb */ color: rgb(57, 119, 161);
/* oklch */ color: oklch(54.7% 0.092 240.9);

Tailwind

colors: {
  custom: {
    50: '#7a9ebd',
    500: '#3977a1',
    950: '#000000',
  },
}

SCSS

$custom: #3977a1;
$custom-light: #7a9ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#3977a1",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 161
  },
  "hsl": {
    "h": 204.231,
    "s": 47.706,
    "l": 42.745
  },
  "oklch": {
    "l": 0.54687,
    "c": 0.09167,
    "h": 240.9
  },
  "luminance": 0.16637
}

Semantic roles & 50–950 ramp

primary

#3977A1

secondary

#BC9479

accent

#8750D7

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3977A1

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

Preview Lab → · Contrast checker → · Palette generator →