#40778B#40778B

#40778B is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 54.0% C 0.066 H 223.9°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#40778B
RGB	rgb(64, 119, 139)
HSL	hsl(196, 37%, 40%)
HSV	hsv(196, 54%, 55%)
CMYK	cmyk(54%, 14.4%, 0%, 45.5%)
CIE-LAB	lab(47.17, -12.23, -16.48)
CIE-LCH	lch(47.17, 20.53, 233.42°)
OKLab	oklab(53.96% -0.0476 -0.0457)
OKLCH	oklch(53.96% 0.066 223.9)
XYZ	xyz(13.3696, 16.1466, 26.8331)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40778B #8B5440

analogous

#408B7A #40778B #40528B

triadic

#40778B #8B4077 #778B40

tetradic

#40778B #7A408B #8B5440 #528B40

square

#40778B #7A408B #8B5440 #528B40

split-complementary

#40778B #8B4052 #8B7A40

monochromatic

#192F37 #2D5361 #40778B #5799B2 #81B3C5

Accessibility & contrast

On white

4.97

#40778B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#40778B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40778B

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40778B	#FFFFFF	#000000	##FFFFFF
##40778B	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C758C

Deuteranopia (green-blind)

#616C8B

Tritanopia (blue-blind)

#0D7D7D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #40778b;
/* rgb */ color: rgb(64, 119, 139);
/* oklch */ color: oklch(54.0% 0.066 223.9);

Tailwind

colors: {
  custom: {
    50: '#7b9ead',
    500: '#40778b',
    950: '#000000',
  },
}

SCSS

$custom: #40778b;
$custom-light: #7b9ead;
$custom-dark: #000000;

JSON

{
  "hex": "#40778b",
  "rgb": {
    "r": 64,
    "g": 119,
    "b": 139
  },
  "hsl": {
    "h": 196,
    "s": 36.946,
    "l": 39.804
  },
  "oklch": {
    "l": 0.53961,
    "c": 0.06596,
    "h": 223.9
  },
  "luminance": 0.16148
}

Semantic roles & 50–950 ramp

primary

#40778B

secondary

#AF8678

accent

#795BCD

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #40778B

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

Preview Lab → · Contrast checker → · Palette generator →