#3F749E#3F749E

#3F749E is a mid, moderate cyan. Relative luminance 0.160; OKLCH L 54.1% C 0.087 H 244.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F749E
RGB	rgb(63, 116, 158)
HSL	hsl(207, 43%, 43%)
HSV	hsv(207, 60%, 62%)
CMYK	cmyk(60.1%, 26.6%, 0%, 38%)
CIE-LAB	lab(46.99, -4.58, -27.96)
CIE-LCH	lch(46.99, 28.33, 260.70°)
OKLab	oklab(54.07% -0.0377 -0.0785)
OKLCH	oklch(54.07% 0.087 244.3)
XYZ	xyz(14.4646, 16.0148, 34.6700)
Luminance	0.1602 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F749E #9E693F

analogous

#3F9E98 #3F749E #3F459E

triadic

#3F749E #9E3F74 #749E3F

tetradic

#3F749E #983F9E #9E693F #459E3F

square

#3F749E #983F9E #9E693F #459E3F

split-complementary

#3F749E #9E3F45 #9E983F

monochromatic

#1C3446 #2E5472 #3F749E #5C93BE #88B0D0

Accessibility & contrast

On white

5.00

#3F749E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#3F749E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F749E

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F749E	#FFFFFF	#000000	##FFFFFF
##3F749E	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6275A0

Deuteranopia (green-blind)

#556B9D

Tritanopia (blue-blind)

#007E82

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f749e;
/* rgb */ color: rgb(63, 116, 158);
/* oklch */ color: oklch(54.1% 0.087 244.3);

Tailwind

colors: {
  custom: {
    50: '#7c9bbb',
    500: '#3f749e',
    950: '#000000',
  },
}

SCSS

$custom: #3f749e;
$custom-light: #7c9bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f749e",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 158
  },
  "hsl": {
    "h": 206.526,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.54074,
    "c": 0.08711,
    "h": 244.3
  },
  "luminance": 0.16016
}

Semantic roles & 50–950 ramp

primary

#3F749E

secondary

#BA997F

accent

#8D55D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F749E

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

Preview Lab → · Contrast checker → · Palette generator →