#42748B#42748B

#42748B is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.3% C 0.065 H 229.4°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#42748B
RGB	rgb(66, 116, 139)
HSL	hsl(199, 36%, 40%)
HSV	hsv(199, 53%, 55%)
CMYK	cmyk(52.5%, 16.5%, 0%, 45.5%)
CIE-LAB	lab(46.33, -10.05, -17.76)
CIE-LCH	lch(46.33, 20.40, 240.50°)
OKLab	oklab(53.32% -0.0422 -0.0493)
OKLCH	oklch(53.32% 0.065 229.4)
XYZ	xyz(13.1506, 15.5120, 26.7222)
Luminance	0.1551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42748B #8B5942

analogous

#428B7D #42748B #424F8B

triadic

#42748B #8B4274 #748B42

tetradic

#42748B #7D428B #8B5942 #4F8B42

square

#42748B #7D428B #8B5942 #4F8B42

split-complementary

#42748B #8B424F #8B7D42

monochromatic

#1B2F38 #2E5162 #42748B #5A95B1 #83B0C4

Accessibility & contrast

On white

5.12

#42748B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#42748B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42748B

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42748B	#FFFFFF	#000000	##FFFFFF
##42748B	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68728C

Deuteranopia (green-blind)

#5E6A8B

Tritanopia (blue-blind)

#177B7B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #42748b;
/* rgb */ color: rgb(66, 116, 139);
/* oklch */ color: oklch(53.3% 0.065 229.4);

Tailwind

colors: {
  custom: {
    50: '#7c9cad',
    500: '#42748b',
    950: '#000000',
  },
}

SCSS

$custom: #42748b;
$custom-light: #7c9cad;
$custom-dark: #000000;

JSON

{
  "hex": "#42748b",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 139
  },
  "hsl": {
    "h": 198.904,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.53318,
    "c": 0.0649,
    "h": 229.4
  },
  "luminance": 0.15513
}

Semantic roles & 50–950 ramp

primary

#42748B

secondary

#AF8B7A

accent

#7F5CCC

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #42748B

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

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