#42A4BA#42A4BA

#42A4BA is a light, moderate cyan. Relative luminance 0.313; OKLCH L 67.0% C 0.095 H 215.2°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#42A4BA
RGB	rgb(66, 164, 186)
HSL	hsl(191, 48%, 49%)
HSV	hsv(191, 65%, 73%)
CMYK	cmyk(64.5%, 11.8%, 0%, 27.1%)
CIE-LAB	lab(62.72, -21.61, -19.79)
CIE-LCH	lch(62.72, 29.31, 222.48°)
OKLab	oklab(67.01% -0.078 -0.055)
OKLCH	oklch(67.01% 0.095 215.2)
XYZ	xyz(24.3815, 31.2517, 51.1921)
Luminance	0.3125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A4BA #BA5842

analogous

#42BA94 #42A4BA #4268BA

triadic

#42A4BA #BA42A4 #A4BA42

tetradic

#42A4BA #9442BA #BA5842 #68BA42

square

#42A4BA #9442BA #BA5842 #68BA42

split-complementary

#42A4BA #BA4268 #BA9442

monochromatic

#225460 #327C8D #42A4BA #6EBACB #9BD0DB

Accessibility & contrast

On white

2.90

#42A4BA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.25

#42A4BA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A4BA

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A4BA	#FFFFFF	#000000	##000000
##42A4BA	1.00	2.90	7.25	7.25
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.25	21.00	1.00	1.00
##000000	7.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#959FBB

Deuteranopia (green-blind)

#8392BA

Tritanopia (blue-blind)

#00ACAB

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #42a4ba;
/* rgb */ color: rgb(66, 164, 186);
/* oklch */ color: oklch(67.0% 0.095 215.2);

Tailwind

colors: {
  custom: {
    50: '#84bfce',
    500: '#42a4ba',
    950: '#000000',
  },
}

SCSS

$custom: #42a4ba;
$custom-light: #84bfce;
$custom-dark: #000000;

JSON

{
  "hex": "#42a4ba",
  "rgb": {
    "r": 66,
    "g": 164,
    "b": 186
  },
  "hsl": {
    "h": 191,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.67008,
    "c": 0.09547,
    "h": 215.2
  },
  "luminance": 0.31254
}

Semantic roles & 50–950 ramp

primary

#42A4BA

secondary

#C89A90

accent

#6951D7

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #42A4BA

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

Preview Lab → · Contrast checker → · Palette generator →