#42657E#42657E

#42657E is a mid, muted cyan. Relative luminance 0.120; OKLCH L 49.1% C 0.057 H 240.5°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#42657E
RGB	rgb(66, 101, 126)
HSL	hsl(205, 31%, 38%)
HSV	hsv(205, 48%, 49%)
CMYK	cmyk(47.6%, 19.8%, 0%, 50.6%)
CIE-LAB	lab(41.17, -5.26, -17.86)
CIE-LCH	lch(41.17, 18.62, 253.59°)
OKLab	oklab(49.06% -0.0281 -0.0496)
OKLCH	oklch(49.06% 0.057 240.5)
XYZ	xyz(10.6650, 11.9712, 21.4833)
Luminance	0.1197 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42657E #7E5B42

analogous

#427E79 #42657E #42477E

triadic

#42657E #7E4265 #657E42

tetradic

#42657E #79427E #7E5B42 #477E42

square

#42657E #79427E #7E5B42 #477E42

split-complementary

#42657E #7E4247 #7E7942

monochromatic

#18252E #2D4556 #42657E #5785A6 #7FA2BC

Accessibility & contrast

On white

6.19

#42657E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#42657E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42657E

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42657E	#FFFFFF	#000000	##FFFFFF
##42657E	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A657F

Deuteranopia (green-blind)

#525E7E

Tritanopia (blue-blind)

#286B6D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #42657e;
/* rgb */ color: rgb(66, 101, 126);
/* oklch */ color: oklch(49.1% 0.057 240.5);

Tailwind

colors: {
  custom: {
    50: '#7a90a3',
    500: '#42657e',
    950: '#000000',
  },
}

SCSS

$custom: #42657e;
$custom-light: #7a90a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42657e",
  "rgb": {
    "r": 66,
    "g": 101,
    "b": 126
  },
  "hsl": {
    "h": 205,
    "s": 31.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.49056,
    "c": 0.05697,
    "h": 240.5
  },
  "luminance": 0.11972
}

Semantic roles & 50–950 ramp

primary

#42657E

secondary

#A78A75

accent

#8B60C7

background

#F7F8FA

surface

#EEF0F3

border

#C9CBCD

text

#090C0F

muted

#7B7D7F

Preview Lab

Preview with #42657E

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

Preview Lab → · Contrast checker → · Palette generator →