#42599F#42599F

#42599F is a mid, moderate blue. Relative luminance 0.108; OKLCH L 48.1% C 0.116 H 268.2°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#42599F
RGB	rgb(66, 89, 159)
HSL	hsl(225, 41%, 44%)
HSV	hsv(225, 58%, 62%)
CMYK	cmyk(58.5%, 44%, 0%, 37.6%)
CIE-LAB	lab(39.25, 13.21, -40.75)
CIE-LCH	lch(39.25, 42.84, 287.96°)
OKLab	oklab(48.1% -0.0037 -0.116)
OKLCH	oklch(48.1% 0.116 268.2)
XYZ	xyz(12.0751, 10.8053, 34.2435)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42599F #9F8842

analogous

#42889F #42599F #5A429F

triadic

#42599F #9F4259 #599F42

tetradic

#42599F #9F4288 #9F8842 #429F5A

square

#42599F #9F4288 #9F8842 #429F5A

split-complementary

#42599F #9F5A42 #889F42

monochromatic

#1E2949 #304174 #42599F #6178BD #8C9DCF

Accessibility & contrast

On white

6.64

#42599F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#42599F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42599F

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42599F	#FFFFFF	#000000	##FFFFFF
##42599F	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A61A2

Deuteranopia (green-blind)

#2E599E

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #42599f;
/* rgb */ color: rgb(66, 89, 159);
/* oklch */ color: oklch(48.1% 0.116 268.2);

Tailwind

colors: {
  custom: {
    50: '#7e87bc',
    500: '#42599f',
    950: '#000000',
  },
}

SCSS

$custom: #42599f;
$custom-light: #7e87bc;
$custom-dark: #000000;

JSON

{
  "hex": "#42599f",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 159
  },
  "hsl": {
    "h": 225.161,
    "s": 41.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48099,
    "c": 0.11604,
    "h": 268.2
  },
  "luminance": 0.10806
}

Semantic roles & 50–950 ramp

primary

#42599F

secondary

#BAAD82

accent

#B357D1

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #42599F

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

Preview Lab → · Contrast checker → · Palette generator →