#2A3F87#2A3F87

#2A3F87 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.123 H 268.1°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F87
RGB	rgb(42, 63, 135)
HSL	hsl(226, 53%, 35%)
HSV	hsv(226, 69%, 53%)
CMYK	cmyk(68.9%, 53.3%, 0%, 47.1%)
CIE-LAB	lab(28.89, 17.12, -42.84)
CIE-LCH	lch(28.89, 46.14, 291.78°)
OKLab	oklab(39.33% -0.0041 -0.123)
OKLCH	oklch(39.33% 0.123 268.1)
XYZ	xyz(7.1040, 5.7958, 23.6613)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F87 #87722A

analogous

#2A6D87 #2A3F87 #442A87

triadic

#2A3F87 #872A3F #3F872A

tetradic

#2A3F87 #872A6D #87722A #2A8744

square

#2A3F87 #872A6D #87722A #2A8744

split-complementary

#2A3F87 #87442A #6D872A

monochromatic

#0D132A #1B2958 #2A3F87 #3955B6 #5E77CD

Accessibility & contrast

On white

9.72

#2A3F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2A3F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F87

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F87	#FFFFFF	#000000	##FFFFFF
##2A3F87	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12498A

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2a3f87;
/* rgb */ color: rgb(42, 63, 135);
/* oklch */ color: oklch(39.3% 0.123 268.1);

Tailwind

colors: {
  custom: {
    50: '#6f73aa',
    500: '#2a3f87',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f87;
$custom-light: #6f73aa;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f87",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 135
  },
  "hsl": {
    "h": 226.452,
    "s": 52.542,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39329,
    "c": 0.12308,
    "h": 268.1
  },
  "luminance": 0.05797
}

Semantic roles & 50–950 ramp

primary

#2A3F87

secondary

#B39F5A

accent

#BB4CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2A3F87

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

Preview Lab → · Contrast checker → · Palette generator →