#3974B0#3974B0

#3974B0 is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.8% C 0.113 H 250.9°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3974B0
RGB	rgb(57, 116, 176)
HSL	hsl(210, 51%, 46%)
HSV	hsv(210, 68%, 69%)
CMYK	cmyk(67.6%, 34.1%, 0%, 31%)
CIE-LAB	lab(47.62, 0.52, -37.53)
CIE-LCH	lch(47.62, 37.53, 270.80°)
OKLab	oklab(54.78% -0.0367 -0.1064)
OKLCH	oklch(54.78% 0.113 250.9)
XYZ	xyz(15.7663, 16.4936, 43.4186)
Luminance	0.1650 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974B0 #B07539

analogous

#39AFB0 #3974B0 #3939B0

triadic

#3974B0 #B03974 #74B039

tetradic

#3974B0 #B039AF #B07539 #39B039

square

#3974B0 #B039AF #B07539 #39B039

split-complementary

#3974B0 #B03939 #AFB039

monochromatic

#1B3754 #2A5682 #3974B0 #5C93CA #8AB1D9

Accessibility & contrast

On white

4.88

#3974B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3974B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3974B0

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974B0	#FFFFFF	#000000	##FFFFFF
##3974B0	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A77B3

Deuteranopia (green-blind)

#496CAF

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3974b0;
/* rgb */ color: rgb(57, 116, 176);
/* oklch */ color: oklch(54.8% 0.113 250.9);

Tailwind

colors: {
  custom: {
    50: '#7c9bc8',
    500: '#3974b0',
    950: '#000000',
  },
}

SCSS

$custom: #3974b0;
$custom-light: #7c9bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3974b0",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 176
  },
  "hsl": {
    "h": 210.252,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.5478,
    "c": 0.11254,
    "h": 250.9
  },
  "luminance": 0.16495
}

Semantic roles & 50–950 ramp

primary

#3974B0

secondary

#C4A381

accent

#944DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3974B0

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

Preview Lab → · Contrast checker → · Palette generator →