#2A178C#2A178C

#2A178C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.176 H 278.0°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#2A178C
RGB	rgb(42, 23, 140)
HSL	hsl(250, 72%, 32%)
HSV	hsv(250, 84%, 55%)
CMYK	cmyk(70%, 83.6%, 0%, 45.1%)
CIE-LAB	lab(20.04, 43.68, -60.45)
CIE-LCH	lch(20.04, 74.58, 305.85°)
OKLab	oklab(33.03% 0.0245 -0.1746)
OKLCH	oklch(33.03% 0.176 278)
XYZ	xyz(5.9933, 2.9980, 25.0687)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A178C #798C17

analogous

#173E8C #2A178C #65178C

triadic

#2A178C #8C2A17 #178C2A

tetradic

#2A178C #8C173E #798C17 #178C65

square

#2A178C #8C173E #798C17 #178C65

split-complementary

#2A178C #8C6517 #3E8C17

monochromatic

#0A0623 #1A0E57 #2A178C #3A20C1 #583EDF

Accessibility & contrast

On white

13.13

#2A178C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#2A178C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A178C

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A178C	#FFFFFF	#000000	##FFFFFF
##2A178C	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#002C8A

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #2a178c;
/* rgb */ color: rgb(42, 23, 140);
/* oklch */ color: oklch(33.0% 0.176 278.0);

Tailwind

colors: {
  custom: {
    50: '#7459af',
    500: '#2a178c',
    950: '#000000',
  },
}

SCSS

$custom: #2a178c;
$custom-light: #7459af;
$custom-dark: #000000;

JSON

{
  "hex": "#2a178c",
  "rgb": {
    "r": 42,
    "g": 23,
    "b": 140
  },
  "hsl": {
    "h": 249.744,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33028,
    "c": 0.17633,
    "h": 278
  },
  "luminance": 0.02998
}

Semantic roles & 50–950 ramp

primary

#2A178C

secondary

#ABBF3F

accent

#EF39D1

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A178C

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

Preview Lab → · Contrast checker → · Palette generator →