#42599E#42599E

#42599E is a mid, moderate blue. Relative luminance 0.108; OKLCH L 48.0% C 0.115 H 268.0°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#42599E
RGB	rgb(66, 89, 158)
HSL	hsl(225, 41%, 44%)
HSV	hsv(225, 58%, 62%)
CMYK	cmyk(58.2%, 43.7%, 0%, 38%)
CIE-LAB	lab(39.19, 12.86, -40.25)
CIE-LCH	lch(39.19, 42.25, 287.72°)
OKLab	oklab(48.04% -0.0039 -0.1145)
OKLCH	oklch(48.04% 0.115 268)
XYZ	xyz(11.9886, 10.7707, 33.7883)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42599E #9E8742

analogous

#42879E #42599E #59429E

triadic

#42599E #9E4259 #599E42

tetradic

#42599E #9E4287 #9E8742 #429E59

square

#42599E #9E4287 #9E8742 #429E59

split-complementary

#42599E #9E5942 #879E42

monochromatic

#1E2848 #304173 #42599E #6078BD #8C9CCF

Accessibility & contrast

On white

6.66

#42599E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#42599E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42599E

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42599E	#FFFFFF	#000000	##FFFFFF
##42599E	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B61A1

Deuteranopia (green-blind)

#2F589D

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #42599e;
/* rgb */ color: rgb(66, 89, 158);
/* oklch */ color: oklch(48.0% 0.115 268.0);

Tailwind

colors: {
  custom: {
    50: '#7e87bb',
    500: '#42599e',
    950: '#000000',
  },
}

SCSS

$custom: #42599e;
$custom-light: #7e87bb;
$custom-dark: #000000;

JSON

{
  "hex": "#42599e",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 158
  },
  "hsl": {
    "h": 225,
    "s": 41.071,
    "l": 43.922
  },
  "oklch": {
    "l": 0.48035,
    "c": 0.11457,
    "h": 268
  },
  "luminance": 0.10772
}

Semantic roles & 50–950 ramp

primary

#42599E

secondary

#BAAC82

accent

#B257D1

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #42599E

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

Preview Lab → · Contrast checker → · Palette generator →