#42859B#42859B

#42859B is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.2% C 0.076 H 222.0°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#42859B
RGB	rgb(66, 133, 155)
HSL	hsl(195, 40%, 43%)
HSV	hsv(195, 57%, 61%)
CMYK	cmyk(57.4%, 14.2%, 0%, 39.2%)
CIE-LAB	lab(52.17, -14.65, -18.21)
CIE-LCH	lch(52.17, 23.38, 231.18°)
OKLab	oklab(58.18% -0.0562 -0.0506)
OKLCH	oklch(58.18% 0.076 222)
XYZ	xyz(16.5484, 20.2983, 34.0499)
Luminance	0.2030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42859B #9B5842

analogous

#429B84 #42859B #42599B

triadic

#42859B #9B4285 #859B42

tetradic

#42859B #84429B #9B5842 #599B42

square

#42859B #84429B #9B5842 #599B42

split-complementary

#42859B #9B4259 #9B8442

monochromatic

#1D3B45 #306070 #42859B #5FA4BB #8ABDCD

Accessibility & contrast

On white

4.15

#42859B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#42859B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42859B

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42859B	#FFFFFF	#000000	##000000
##42859B	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78829C

Deuteranopia (green-blind)

#6B789B

Tritanopia (blue-blind)

#008C8C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #42859b;
/* rgb */ color: rgb(66, 133, 155);
/* oklch */ color: oklch(58.2% 0.076 222.0);

Tailwind

colors: {
  custom: {
    50: '#7ea8b8',
    500: '#42859b',
    950: '#000000',
  },
}

SCSS

$custom: #42859b;
$custom-light: #7ea8b8;
$custom-dark: #000000;

JSON

{
  "hex": "#42859b",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 155
  },
  "hsl": {
    "h": 194.831,
    "s": 40.271,
    "l": 43.333
  },
  "oklch": {
    "l": 0.58182,
    "c": 0.07564,
    "h": 222
  },
  "luminance": 0.203
}

Semantic roles & 50–950 ramp

primary

#42859B

secondary

#B88E81

accent

#7558D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #42859B

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

Preview Lab → · Contrast checker → · Palette generator →