#40739F#40739F

#40739F is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 53.9% C 0.089 H 246.4°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#40739F
RGB	rgb(64, 115, 159)
HSL	hsl(208, 43%, 44%)
HSV	hsv(208, 60%, 62%)
CMYK	cmyk(59.7%, 27.7%, 0%, 37.6%)
CIE-LAB	lab(46.78, -3.44, -28.88)
CIE-LCH	lch(46.78, 29.08, 263.21°)
OKLab	oklab(53.93% -0.0354 -0.0812)
OKLCH	oklch(53.93% 0.089 246.4)
XYZ	xyz(14.5008, 15.8533, 35.0900)
Luminance	0.1585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40739F #9F6C40

analogous

#409F9B #40739F #40439F

triadic

#40739F #9F4073 #739F40

tetradic

#40739F #9B409F #9F6C40 #439F40

square

#40739F #9B409F #9F6C40 #439F40

split-complementary

#40739F #9F4043 #9F9B40

monochromatic

#1D3448 #2E5373 #40739F #5E92BE #8AAFD0

Accessibility & contrast

On white

5.03

#40739F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#40739F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40739F

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40739F	#FFFFFF	#000000	##FFFFFF
##40739F	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6074A1

Deuteranopia (green-blind)

#536B9E

Tritanopia (blue-blind)

#007D82

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #40739f;
/* rgb */ color: rgb(64, 115, 159);
/* oklch */ color: oklch(53.9% 0.089 246.4);

Tailwind

colors: {
  custom: {
    50: '#7d9bbb',
    500: '#40739f',
    950: '#000000',
  },
}

SCSS

$custom: #40739f;
$custom-light: #7d9bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#40739f",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 159
  },
  "hsl": {
    "h": 207.789,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.53933,
    "c": 0.08856,
    "h": 246.4
  },
  "luminance": 0.15855
}

Semantic roles & 50–950 ramp

primary

#40739F

secondary

#BB9B80

accent

#8F55D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #40739F

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

Preview Lab → · Contrast checker → · Palette generator →