#2A3688#2A3688

#2A3688 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.137 H 271.8°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#2A3688
RGB	rgb(42, 54, 136)
HSL	hsl(232, 53%, 35%)
HSV	hsv(232, 69%, 53%)
CMYK	cmyk(69.1%, 60.3%, 0%, 46.7%)
CIE-LAB	lab(26.47, 23.66, -47.39)
CIE-LCH	lch(26.47, 52.97, 296.53°)
OKLab	oklab(37.54% 0.0043 -0.1365)
OKLCH	oklch(37.54% 0.137 271.8)
XYZ	xyz(6.7164, 4.9075, 23.8811)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3688 #887C2A

analogous

#2A6588 #2A3688 #4D2A88

triadic

#2A3688 #882A36 #36882A

tetradic

#2A3688 #882A65 #887C2A #2A884D

square

#2A3688 #882A65 #887C2A #2A884D

split-complementary

#2A3688 #884D2A #65882A

monochromatic

#0D112A #1C2359 #2A3688 #3849B7 #5F6DCE

Accessibility & contrast

On white

10.60

#2A3688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#2A3688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3688

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3688	#FFFFFF	#000000	##FFFFFF
##2A3688	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a3688;
/* rgb */ color: rgb(42, 54, 136);
/* oklch */ color: oklch(37.5% 0.137 271.8);

Tailwind

colors: {
  custom: {
    50: '#706cab',
    500: '#2a3688',
    950: '#000000',
  },
}

SCSS

$custom: #2a3688;
$custom-light: #706cab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3688",
  "rgb": {
    "r": 42,
    "g": 54,
    "b": 136
  },
  "hsl": {
    "h": 232.34,
    "s": 52.809,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37536,
    "c": 0.13658,
    "h": 271.8
  },
  "luminance": 0.04908
}

Semantic roles & 50–950 ramp

primary

#2A3688

secondary

#B3A85B

accent

#CA4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A3688

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

Preview Lab → · Contrast checker → · Palette generator →