#42899B#42899B

#42899B is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.2% C 0.076 H 216.7°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#42899B
RGB	rgb(66, 137, 155)
HSL	hsl(192, 40%, 43%)
HSV	hsv(192, 57%, 61%)
CMYK	cmyk(57.4%, 11.6%, 0%, 39.2%)
CIE-LAB	lab(53.40, -16.84, -16.34)
CIE-LCH	lch(53.40, 23.47, 224.15°)
OKLab	oklab(59.16% -0.0609 -0.0453)
OKLCH	oklch(59.16% 0.076 216.7)
XYZ	xyz(17.1065, 21.4145, 34.2359)
Luminance	0.2142 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42899B #9B5442

analogous

#429B80 #42899B #425C9B

triadic

#42899B #9B4289 #899B42

tetradic

#42899B #80429B #9B5442 #5C9B42

square

#42899B #80429B #9B5442 #5C9B42

split-complementary

#42899B #9B425C #9B8042

monochromatic

#1D3D45 #306370 #42899B #5FA8BB #8AC0CD

Accessibility & contrast

On white

3.97

#42899B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#42899B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42899B

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42899B	#FFFFFF	#000000	##000000
##42899B	1.00	3.97	5.28	5.28
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D859C

Deuteranopia (green-blind)

#707B9B

Tritanopia (blue-blind)

#00908F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #42899b;
/* rgb */ color: rgb(66, 137, 155);
/* oklch */ color: oklch(59.2% 0.076 216.7);

Tailwind

colors: {
  custom: {
    50: '#7eabb8',
    500: '#42899b',
    950: '#000000',
  },
}

SCSS

$custom: #42899b;
$custom-light: #7eabb8;
$custom-dark: #000000;

JSON

{
  "hex": "#42899b",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 155
  },
  "hsl": {
    "h": 192.135,
    "s": 40.271,
    "l": 43.333
  },
  "oklch": {
    "l": 0.59163,
    "c": 0.07588,
    "h": 216.7
  },
  "luminance": 0.21416
}

Semantic roles & 50–950 ramp

primary

#42899B

secondary

#B88C81

accent

#7058D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #42899B

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

Preview Lab → · Contrast checker → · Palette generator →