#42858C#42858C

#42858C is a mid, moderate teal. Relative luminance 0.198; OKLCH L 57.6% C 0.069 H 204.4°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#42858C
RGB	rgb(66, 133, 140)
HSL	hsl(186, 36%, 40%)
HSV	hsv(186, 53%, 55%)
CMYK	cmyk(52.9%, 5%, 0%, 45.1%)
CIE-LAB	lab(51.64, -19.17, -10.29)
CIE-LCH	lch(51.64, 21.76, 208.24°)
OKLab	oklab(57.58% -0.0625 -0.0284)
OKLCH	oklch(57.58% 0.069 204.4)
XYZ	xyz(15.3660, 19.8254, 27.8228)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42858C #8C4942

analogous

#428C6E #42858C #42608C

triadic

#42858C #8C4285 #858C42

tetradic

#42858C #6E428C #8C4942 #608C42

square

#42858C #6E428C #8C4942 #608C42

split-complementary

#42858C #8C4260 #8C6E42

monochromatic

#1B3639 #2E5D62 #42858C #5AA9B1 #84BFC5

Accessibility & contrast

On white

4.23

#42858C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#42858C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42858C

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42858C	#FFFFFF	#000000	##000000
##42858C	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C808D

Deuteranopia (green-blind)

#70778C

Tritanopia (blue-blind)

#0C8A87

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #42858c;
/* rgb */ color: rgb(66, 133, 140);
/* oklch */ color: oklch(57.6% 0.069 204.4);

Tailwind

colors: {
  custom: {
    50: '#7da8ad',
    500: '#42858c',
    950: '#000000',
  },
}

SCSS

$custom: #42858c;
$custom-light: #7da8ad;
$custom-dark: #000000;

JSON

{
  "hex": "#42858c",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 140
  },
  "hsl": {
    "h": 185.676,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.57577,
    "c": 0.06869,
    "h": 204.4
  },
  "luminance": 0.19827
}

Semantic roles & 50–950 ramp

primary

#42858C

secondary

#B07F7A

accent

#665CCC

background

#F7FAFA

surface

#EEF4F4

border

#C9CECE

text

#0A0F10

muted

#7C7F7F

Preview Lab

Preview with #42858C

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

Preview Lab → · Contrast checker → · Palette generator →