#42498D#42498D

#42498D is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.5% C 0.111 H 276.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#42498D
RGB	rgb(66, 73, 141)
HSL	hsl(234, 36%, 41%)
HSV	hsv(234, 53%, 55%)
CMYK	cmyk(53.2%, 48.2%, 0%, 44.7%)
CIE-LAB	lab(33.66, 17.46, -38.79)
CIE-LCH	lch(33.66, 42.54, 294.24°)
OKLab	oklab(43.48% 0.0122 -0.1104)
OKLCH	oklch(43.48% 0.111 276.3)
XYZ	xyz(9.4355, 7.8458, 26.2113)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42498D #8D8642

analogous

#426E8D #42498D #60428D

triadic

#42498D #8D4249 #498D42

tetradic

#42498D #8D426E #8D8642 #428D60

square

#42498D #8D426E #8D8642 #428D60

split-complementary

#42498D #8D6042 #6E8D42

monochromatic

#1B1E3A #2E3363 #42498D #5A62B2 #848AC5

Accessibility & contrast

On white

8.17

#42498D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#42498D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42498D

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42498D	#FFFFFF	#000000	##FFFFFF
##42498D	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5290

Deuteranopia (green-blind)

#234C8C

Tritanopia (blue-blind)

#225864

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #42498d;
/* rgb */ color: rgb(66, 73, 141);
/* oklch */ color: oklch(43.5% 0.111 276.3);

Tailwind

colors: {
  custom: {
    50: '#7c7baf',
    500: '#42498d',
    950: '#000000',
  },
}

SCSS

$custom: #42498d;
$custom-light: #7c7baf;
$custom-dark: #000000;

JSON

{
  "hex": "#42498d",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 141
  },
  "hsl": {
    "h": 234.4,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43479,
    "c": 0.11108,
    "h": 276.3
  },
  "luminance": 0.07846
}

Semantic roles & 50–950 ramp

primary

#42498D

secondary

#B0AB7B

accent

#C25CCC

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #42498D

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

Preview Lab → · Contrast checker → · Palette generator →