#42498E#42498E

#42498E is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.5% C 0.113 H 276.3°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#42498E
RGB	rgb(66, 73, 142)
HSL	hsl(234, 37%, 41%)
HSV	hsv(234, 54%, 56%)
CMYK	cmyk(53.5%, 48.6%, 0%, 44.3%)
CIE-LAB	lab(33.72, 17.80, -39.31)
CIE-LCH	lch(33.72, 43.15, 294.37°)
OKLab	oklab(43.55% 0.0124 -0.1119)
OKLCH	oklch(43.55% 0.113 276.3)
XYZ	xyz(9.5103, 7.8757, 26.6050)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42498E #8E8742

analogous

#426F8E #42498E #61428E

triadic

#42498E #8E4249 #498E42

tetradic

#42498E #8E426F #8E8742 #428E61

square

#42498E #8E426F #8E8742 #428E61

split-complementary

#42498E #8E6142 #6F8E42

monochromatic

#1B1E3A #2F3464 #42498E #5B63B3 #848AC6

Accessibility & contrast

On white

8.15

#42498E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#42498E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42498E

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42498E	#FFFFFF	#000000	##FFFFFF
##42498E	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5391

Deuteranopia (green-blind)

#224C8C

Tritanopia (blue-blind)

#215864

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #42498e;
/* rgb */ color: rgb(66, 73, 142);
/* oklch */ color: oklch(43.5% 0.113 276.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#42498e",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 142
  },
  "hsl": {
    "h": 234.474,
    "s": 36.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.43547,
    "c": 0.11258,
    "h": 276.3
  },
  "luminance": 0.07876
}

Semantic roles & 50–950 ramp

primary

#42498E

secondary

#B1AC7B

accent

#C25BCD

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #42498E

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

Preview Lab → · Contrast checker → · Palette generator →