#2A188C#2A188C

#2A188C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.1% C 0.176 H 277.9°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#2A188C
RGB	rgb(42, 24, 140)
HSL	hsl(249, 71%, 32%)
HSV	hsv(249, 83%, 55%)
CMYK	cmyk(70%, 82.9%, 0%, 45.1%)
CIE-LAB	lab(20.20, 43.21, -60.18)
CIE-LCH	lch(20.20, 74.09, 305.68°)
OKLab	oklab(33.14% 0.0241 -0.1739)
OKLCH	oklch(33.14% 0.176 277.9)
XYZ	xyz(6.0136, 3.0384, 25.0754)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A188C #7A8C18

analogous

#18408C #2A188C #64188C

triadic

#2A188C #8C2A18 #188C2A

tetradic

#2A188C #8C1840 #7A8C18 #188C64

square

#2A188C #8C1840 #7A8C18 #188C64

split-complementary

#2A188C #8C6418 #408C18

monochromatic

#0B0624 #1A0F58 #2A188C #3A21C0 #5940DE

Accessibility & contrast

On white

13.06

#2A188C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2A188C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A188C

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A188C	#FFFFFF	#000000	##FFFFFF
##2A188C	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#002C8A

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a188c;
/* rgb */ color: rgb(42, 24, 140);
/* oklch */ color: oklch(33.1% 0.176 277.9);

Tailwind

colors: {
  custom: {
    50: '#7459af',
    500: '#2a188c',
    950: '#000000',
  },
}

SCSS

$custom: #2a188c;
$custom-light: #7459af;
$custom-dark: #000000;

JSON

{
  "hex": "#2a188c",
  "rgb": {
    "r": 42,
    "g": 24,
    "b": 140
  },
  "hsl": {
    "h": 249.31,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3314,
    "c": 0.17552,
    "h": 277.9
  },
  "luminance": 0.03039
}

Semantic roles & 50–950 ramp

primary

#2A188C

secondary

#ABBF41

accent

#ED3AD2

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A188C

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

Preview Lab → · Contrast checker → · Palette generator →