#42B9CE#42B9CE

#42B9CE is a light, moderate teal. Relative luminance 0.403; OKLCH L 72.8% C 0.108 H 211.6°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#42B9CE
RGB	rgb(66, 185, 206)
HSL	hsl(189, 59%, 53%)
HSV	hsv(189, 68%, 81%)
CMYK	cmyk(68%, 10.2%, 0%, 19.2%)
CIE-LAB	lab(69.69, -26.17, -20.27)
CIE-LCH	lch(69.69, 33.10, 217.75°)
OKLab	oklab(72.85% -0.0916 -0.0563)
OKLCH	oklch(72.85% 0.108 211.6)
XYZ	xyz(30.7316, 40.3089, 64.5413)
Luminance	0.4031 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9CE #CE5742

analogous

#42CE9D #42B9CE #4273CE

triadic

#42B9CE #CE42B9 #B9CE42

tetradic

#42B9CE #9D42CE #CE5742 #73CE42

square

#42B9CE #9D42CE #CE5742 #73CE42

split-complementary

#42B9CE #CE4273 #CE9D42

monochromatic

#1F6A77 #2B95A7 #42B9CE #73CBDB #A3DDE7

Accessibility & contrast

On white

2.32

#42B9CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#42B9CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9CE

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9CE	#FFFFFF	#000000	##000000
##42B9CE	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B3CF

Deuteranopia (green-blind)

#94A4CE

Tritanopia (blue-blind)

#00C2BF

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b9ce;
/* rgb */ color: rgb(66, 185, 206);
/* oklch */ color: oklch(72.8% 0.108 211.6);

Tailwind

colors: {
  custom: {
    50: '#88cedd',
    500: '#42b9ce',
    950: '#000000',
  },
}

SCSS

$custom: #42b9ce;
$custom-light: #88cedd;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9ce",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 206
  },
  "hsl": {
    "h": 189,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72846,
    "c": 0.10756,
    "h": 211.6
  },
  "luminance": 0.40312
}

Semantic roles & 50–950 ramp

primary

#42B9CE

secondary

#D4A198

accent

#5D46E2

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B9CE

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

Preview Lab → · Contrast checker → · Palette generator →