#42599D#42599D

#42599D is a mid, moderate blue. Relative luminance 0.107; OKLCH L 48.0% C 0.113 H 267.9°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#42599D
RGB	rgb(66, 89, 157)
HSL	hsl(225, 41%, 44%)
HSV	hsv(225, 58%, 62%)
CMYK	cmyk(58%, 43.3%, 0%, 38.4%)
CIE-LAB	lab(39.13, 12.51, -39.74)
CIE-LCH	lch(39.13, 41.66, 287.48°)
OKLab	oklab(47.97% -0.0041 -0.113)
OKLCH	oklch(47.97% 0.113 267.9)
XYZ	xyz(11.9029, 10.7364, 33.3368)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42599D #9D8642

analogous

#42869D #42599D #58429D

triadic

#42599D #9D4259 #599D42

tetradic

#42599D #9D4286 #9D8642 #429D58

square

#42599D #9D4286 #9D8642 #429D58

split-complementary

#42599D #9D5842 #869D42

monochromatic

#1E2847 #304172 #42599D #6077BC #8B9CCE

Accessibility & contrast

On white

6.67

#42599D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#42599D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42599D

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42599D	#FFFFFF	#000000	##FFFFFF
##42599D	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B60A0

Deuteranopia (green-blind)

#30589C

Tritanopia (blue-blind)

#026873

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #42599d;
/* rgb */ color: rgb(66, 89, 157);
/* oklch */ color: oklch(48.0% 0.113 267.9);

Tailwind

colors: {
  custom: {
    50: '#7e87ba',
    500: '#42599d',
    950: '#000000',
  },
}

SCSS

$custom: #42599d;
$custom-light: #7e87ba;
$custom-dark: #000000;

JSON

{
  "hex": "#42599d",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 157
  },
  "hsl": {
    "h": 224.835,
    "s": 40.807,
    "l": 43.725
  },
  "oklch": {
    "l": 0.47971,
    "c": 0.11309,
    "h": 267.9
  },
  "luminance": 0.10737
}

Semantic roles & 50–950 ramp

primary

#42599D

secondary

#B9AB82

accent

#B257D1

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #42599D

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

Preview Lab → · Contrast checker → · Palette generator →