#42599A#42599A

#42599A is a mid, moderate blue. Relative luminance 0.106; OKLCH L 47.8% C 0.109 H 267.5°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#42599A
RGB	rgb(66, 89, 154)
HSL	hsl(224, 40%, 43%)
HSV	hsv(224, 57%, 60%)
CMYK	cmyk(57.1%, 42.2%, 0%, 39.6%)
CIE-LAB	lab(38.96, 11.48, -38.22)
CIE-LCH	lch(38.96, 39.91, 286.71°)
OKLab	oklab(47.78% -0.0047 -0.1086)
OKLCH	oklch(47.78% 0.109 267.5)
XYZ	xyz(11.6499, 10.6352, 32.0045)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42599A #9A8342

analogous

#42859A #42599A #57429A

triadic

#42599A #9A4259 #599A42

tetradic

#42599A #9A4285 #9A8342 #429A57

square

#42599A #9A4285 #9A8342 #429A57

split-complementary

#42599A #9A5742 #859A42

monochromatic

#1D2744 #30406F #42599A #5F77BA #8A9BCD

Accessibility & contrast

On white

6.72

#42599A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#42599A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42599A

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42599A	#FFFFFF	#000000	##FFFFFF
##42599A	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D609D

Deuteranopia (green-blind)

#325899

Tritanopia (blue-blind)

#0A6772

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #42599a;
/* rgb */ color: rgb(66, 89, 154);
/* oklch */ color: oklch(47.8% 0.109 267.5);

Tailwind

colors: {
  custom: {
    50: '#7d87b8',
    500: '#42599a',
    950: '#000000',
  },
}

SCSS

$custom: #42599a;
$custom-light: #7d87b8;
$custom-dark: #000000;

JSON

{
  "hex": "#42599a",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 154
  },
  "hsl": {
    "h": 224.318,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.47781,
    "c": 0.10866,
    "h": 267.5
  },
  "luminance": 0.10636
}

Semantic roles & 50–950 ramp

primary

#42599A

secondary

#B8A980

accent

#B158D0

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #42599A

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

Preview Lab → · Contrast checker → · Palette generator →