#40688B#40688B

#40688B is a mid, moderate cyan. Relative luminance 0.129; OKLCH L 50.3% C 0.072 H 246.2°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#40688B
RGB	rgb(64, 104, 139)
HSL	hsl(208, 37%, 40%)
HSV	hsv(208, 54%, 55%)
CMYK	cmyk(54%, 25.2%, 0%, 45.5%)
CIE-LAB	lab(42.54, -3.45, -23.60)
CIE-LCH	lch(42.54, 23.85, 261.69°)
OKLab	oklab(50.29% -0.029 -0.066)
OKLCH	oklch(50.29% 0.072 246.2)
XYZ	xyz(11.7232, 12.8538, 26.2843)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40688B #8B6340

analogous

#408B89 #40688B #40428B

triadic

#40688B #8B4068 #688B40

tetradic

#40688B #89408B #8B6340 #428B40

square

#40688B #89408B #8B6340 #428B40

split-complementary

#40688B #8B4042 #8B8940

monochromatic

#192937 #2D4961 #40688B #5787B2 #81A5C5

Accessibility & contrast

On white

5.88

#40688B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#40688B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40688B

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40688B	#FFFFFF	#000000	##FFFFFF
##40688B	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59698D

Deuteranopia (green-blind)

#4F618A

Tritanopia (blue-blind)

#157074

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #40688b;
/* rgb */ color: rgb(64, 104, 139);
/* oklch */ color: oklch(50.3% 0.072 246.2);

Tailwind

colors: {
  custom: {
    50: '#7a93ad',
    500: '#40688b',
    950: '#000000',
  },
}

SCSS

$custom: #40688b;
$custom-light: #7a93ad;
$custom-dark: #000000;

JSON

{
  "hex": "#40688b",
  "rgb": {
    "r": 64,
    "g": 104,
    "b": 139
  },
  "hsl": {
    "h": 208,
    "s": 36.946,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50294,
    "c": 0.0721,
    "h": 246.2
  },
  "luminance": 0.12855
}

Semantic roles & 50–950 ramp

primary

#40688B

secondary

#AF9278

accent

#905BCD

background

#F7F9FA

surface

#EEF1F4

border

#C9CBCE

text

#0A0D10

muted

#7C7E7F

Preview Lab

Preview with #40688B

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

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