#42598E#42598E

#42598E is a mid, moderate blue. Relative luminance 0.103; OKLCH L 47.1% C 0.091 H 265.3°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#42598E
RGB	rgb(66, 89, 142)
HSL	hsl(222, 37%, 41%)
HSV	hsv(222, 54%, 56%)
CMYK	cmyk(53.5%, 37.3%, 0%, 44.3%)
CIE-LAB	lab(38.30, 7.39, -32.04)
CIE-LCH	lch(38.30, 32.88, 282.99°)
OKLab	oklab(47.05% -0.0074 -0.0905)
OKLCH	oklch(47.05% 0.091 265.3)
XYZ	xyz(10.7000, 10.2552, 27.0016)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42598E #8E7742

analogous

#427F8E #42598E #51428E

triadic

#42598E #8E4259 #598E42

tetradic

#42598E #8E427F #8E7742 #428E51

square

#42598E #8E427F #8E7742 #428E51

split-complementary

#42598E #8E5142 #7F8E42

monochromatic

#1B253A #2F3F64 #42598E #5B75B3 #8498C6

Accessibility & contrast

On white

6.88

#42598E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#42598E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42598E

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42598E	#FFFFFF	#000000	##FFFFFF
##42598E	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445E90

Deuteranopia (green-blind)

#3B578D

Tritanopia (blue-blind)

#1D646D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #42598e;
/* rgb */ color: rgb(66, 89, 142);
/* oklch */ color: oklch(47.1% 0.091 265.3);

Tailwind

colors: {
  custom: {
    50: '#7c87af',
    500: '#42598e',
    950: '#000000',
  },
}

SCSS

$custom: #42598e;
$custom-light: #7c87af;
$custom-dark: #000000;

JSON

{
  "hex": "#42598e",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 142
  },
  "hsl": {
    "h": 221.842,
    "s": 36.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.47053,
    "c": 0.09079,
    "h": 265.3
  },
  "luminance": 0.10256
}

Semantic roles & 50–950 ramp

primary

#42598E

secondary

#B1A17B

accent

#AA5BCD

background

#F7F8FA

surface

#EEEFF4

border

#C9CACE

text

#0A0B10

muted

#7C7C7F

Preview Lab

Preview with #42598E

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

Preview Lab → · Contrast checker → · Palette generator →