#3974B9#3974B9

#3974B9 is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.3% C 0.124 H 254.0°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3974B9
RGB	rgb(57, 116, 185)
HSL	hsl(212, 53%, 47%)
HSV	hsv(212, 69%, 73%)
CMYK	cmyk(69.2%, 37.3%, 0%, 27.5%)
CIE-LAB	lab(48.09, 3.74, -42.00)
CIE-LCH	lch(48.09, 42.17, 275.09°)
OKLab	oklab(55.3% -0.0343 -0.1194)
OKLCH	oklch(55.3% 0.124 254)
XYZ	xyz(16.6865, 16.8617, 48.2648)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974B9 #B97E39

analogous

#39B4B9 #3974B9 #3E39B9

triadic

#3974B9 #B93974 #74B939

tetradic

#3974B9 #B939B4 #B97E39 #39B93E

square

#3974B9 #B939B4 #B97E39 #39B93E

split-complementary

#3974B9 #B93E39 #B4B939

monochromatic

#1C395B #2B578A #3974B9 #6193CE #90B3DD

Accessibility & contrast

On white

4.80

#3974B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3974B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3974B9

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974B9	#FFFFFF	#000000	##FFFFFF
##3974B9	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5579BC

Deuteranopia (green-blind)

#426DB8

Tritanopia (blue-blind)

#00848D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3974b9;
/* rgb */ color: rgb(57, 116, 185);
/* oklch */ color: oklch(55.3% 0.124 254.0);

Tailwind

colors: {
  custom: {
    50: '#7e9bce',
    500: '#3974b9',
    950: '#000000',
  },
}

SCSS

$custom: #3974b9;
$custom-light: #7e9bce;
$custom-dark: #000000;

JSON

{
  "hex": "#3974b9",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 185
  },
  "hsl": {
    "h": 212.344,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55301,
    "c": 0.12429,
    "h": 254
  },
  "luminance": 0.16863
}

Semantic roles & 50–950 ramp

primary

#3974B9

secondary

#C8A986

accent

#9A4BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3974B9

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

Preview Lab → · Contrast checker → · Palette generator →