#42599C#42599C

#42599C is a mid, moderate blue. Relative luminance 0.107; OKLCH L 47.9% C 0.112 H 267.8°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#42599C
RGB	rgb(66, 89, 156)
HSL	hsl(225, 41%, 44%)
HSV	hsv(225, 58%, 61%)
CMYK	cmyk(57.7%, 42.9%, 0%, 38.8%)
CIE-LAB	lab(39.07, 12.17, -39.24)
CIE-LCH	lch(39.07, 41.08, 287.23°)
OKLab	oklab(47.91% -0.0043 -0.1115)
OKLCH	oklch(47.91% 0.112 267.8)
XYZ	xyz(11.8179, 10.7024, 32.8891)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42599C #9C8542

analogous

#42869C #42599C #58429C

triadic

#42599C #9C4259 #599C42

tetradic

#42599C #9C4286 #9C8542 #429C58

square

#42599C #9C4286 #9C8542 #429C58

split-complementary

#42599C #9C5842 #869C42

monochromatic

#1E2846 #304071 #42599C #6077BC #8B9CCE

Accessibility & contrast

On white

6.69

#42599C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#42599C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42599C

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42599C	#FFFFFF	#000000	##FFFFFF
##42599C	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C609F

Deuteranopia (green-blind)

#31589B

Tritanopia (blue-blind)

#046873

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #42599c;
/* rgb */ color: rgb(66, 89, 156);
/* oklch */ color: oklch(47.9% 0.112 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e87b9',
    500: '#42599c',
    950: '#000000',
  },
}

SCSS

$custom: #42599c;
$custom-light: #7e87b9;
$custom-dark: #000000;

JSON

{
  "hex": "#42599c",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 156
  },
  "hsl": {
    "h": 224.667,
    "s": 40.541,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47907,
    "c": 0.11162,
    "h": 267.8
  },
  "luminance": 0.10703
}

Semantic roles & 50–950 ramp

primary

#42599C

secondary

#B9AB81

accent

#B157D0

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #42599C

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

Preview Lab → · Contrast checker → · Palette generator →