#3974B8#3974B8

#3974B8 is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.2% C 0.123 H 253.7°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3974B8
RGB	rgb(57, 116, 184)
HSL	hsl(212, 53%, 47%)
HSV	hsv(212, 69%, 72%)
CMYK	cmyk(69%, 37%, 0%, 27.8%)
CIE-LAB	lab(48.03, 3.38, -41.51)
CIE-LCH	lch(48.03, 41.65, 274.66°)
OKLab	oklab(55.24% -0.0346 -0.118)
OKLCH	oklch(55.24% 0.123 253.7)
XYZ	xyz(16.5813, 16.8196, 47.7108)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974B8 #B87D39

analogous

#39B4B8 #3974B8 #3E39B8

triadic

#3974B8 #B83974 #74B839

tetradic

#3974B8 #B839B4 #B87D39 #39B83E

square

#3974B8 #B839B4 #B87D39 #39B83E

split-complementary

#3974B8 #B83E39 #B4B839

monochromatic

#1C395B #2B5789 #3974B8 #6093CE #8FB3DC

Accessibility & contrast

On white

4.81

#3974B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3974B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3974B8

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974B8	#FFFFFF	#000000	##FFFFFF
##3974B8	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5579BB

Deuteranopia (green-blind)

#436DB7

Tritanopia (blue-blind)

#00848D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3974b8;
/* rgb */ color: rgb(57, 116, 184);
/* oklch */ color: oklch(55.2% 0.123 253.7);

Tailwind

colors: {
  custom: {
    50: '#7e9bcd',
    500: '#3974b8',
    950: '#000000',
  },
}

SCSS

$custom: #3974b8;
$custom-light: #7e9bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3974b8",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 184
  },
  "hsl": {
    "h": 212.126,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.55242,
    "c": 0.12298,
    "h": 253.7
  },
  "luminance": 0.16821
}

Semantic roles & 50–950 ramp

primary

#3974B8

secondary

#C7A986

accent

#994CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3974B8

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

Preview Lab → · Contrast checker → · Palette generator →