#2A3F8D#2A3F8D

#2A3F8D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.132 H 268.4°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F8D
RGB	rgb(42, 63, 141)
HSL	hsl(227, 54%, 36%)
HSV	hsv(227, 70%, 55%)
CMYK	cmyk(70.2%, 55.3%, 0%, 44.7%)
CIE-LAB	lab(29.34, 19.41, -45.83)
CIE-LCH	lch(29.34, 49.78, 292.95°)
OKLab	oklab(39.81% -0.0036 -0.1318)
OKLCH	oklch(39.81% 0.132 268.4)
XYZ	xyz(7.5384, 5.9696, 25.9491)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F8D #8D782A

analogous

#2A708D #2A3F8D #462A8D

triadic

#2A3F8D #8D2A3F #3F8D2A

tetradic

#2A3F8D #8D2A70 #8D782A #2A8D46

square

#2A3F8D #8D2A70 #8D782A #2A8D46

split-complementary

#2A3F8D #8D462A #708D2A

monochromatic

#0E152F #1C2A5E #2A3F8D #3854BC #6179D0

Accessibility & contrast

On white

9.57

#2A3F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2A3F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F8D

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F8D	#FFFFFF	#000000	##FFFFFF
##2A3F8D	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044A90

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2a3f8d;
/* rgb */ color: rgb(42, 63, 141);
/* oklch */ color: oklch(39.8% 0.132 268.4);

Tailwind

colors: {
  custom: {
    50: '#7073af',
    500: '#2a3f8d',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f8d;
$custom-light: #7073af;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f8d",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 141
  },
  "hsl": {
    "h": 227.273,
    "s": 54.098,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39806,
    "c": 0.13186,
    "h": 268.4
  },
  "luminance": 0.0597
}

Semantic roles & 50–950 ramp

primary

#2A3F8D

secondary

#B6A35D

accent

#BE4ADD

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2A3F8D

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

Preview Lab → · Contrast checker → · Palette generator →