#2A3C87#2A3C87

#2A3C87 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.127 H 269.4°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#2A3C87
RGB	rgb(42, 60, 135)
HSL	hsl(228, 53%, 35%)
HSV	hsv(228, 69%, 53%)
CMYK	cmyk(68.9%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(28.04, 19.18, -44.22)
CIE-LCH	lch(28.04, 48.20, 293.44°)
OKLab	oklab(38.69% -0.0013 -0.1271)
OKLCH	oklch(38.69% 0.127 269.4)
XYZ	xyz(6.9424, 5.4726, 23.6074)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3C87 #87752A

analogous

#2A6B87 #2A3C87 #472A87

triadic

#2A3C87 #872A3C #3C872A

tetradic

#2A3C87 #872A6B #87752A #2A8747

square

#2A3C87 #872A6B #87752A #2A8747

split-complementary

#2A3C87 #87472A #6B872A

monochromatic

#0D132A #1B2758 #2A3C87 #3951B6 #5E74CD

Accessibility & contrast

On white

10.03

#2A3C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2A3C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3C87

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3C87	#FFFFFF	#000000	##FFFFFF
##2A3C87	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05478A

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2a3c87;
/* rgb */ color: rgb(42, 60, 135);
/* oklch */ color: oklch(38.7% 0.127 269.4);

Tailwind

colors: {
  custom: {
    50: '#6f71ab',
    500: '#2a3c87',
    950: '#000000',
  },
}

SCSS

$custom: #2a3c87;
$custom-light: #6f71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3c87",
  "rgb": {
    "r": 42,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 228.387,
    "s": 52.542,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38687,
    "c": 0.12711,
    "h": 269.4
  },
  "luminance": 0.05473
}

Semantic roles & 50–950 ramp

primary

#2A3C87

secondary

#B3A25A

accent

#C04CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A3C87

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

Preview Lab → · Contrast checker → · Palette generator →