#2A3FAF#2A3FAF

#2A3FAF is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.179 H 269.0°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#2A3FAF
RGB	rgb(42, 63, 175)
HSL	hsl(231, 61%, 43%)
HSV	hsv(231, 76%, 69%)
CMYK	cmyk(76%, 64%, 0%, 31.4%)
CIE-LAB	lab(32.13, 32.22, -61.89)
CIE-LCH	lch(32.13, 69.77, 297.51°)
OKLab	oklab(42.75% -0.0032 -0.1789)
OKLCH	oklch(42.75% 0.179 269)
XYZ	xyz(10.4675, 7.1413, 41.3759)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3FAF #AF9A2A

analogous

#2A82AF #2A3FAF #572AAF

triadic

#2A3FAF #AF2A3F #3FAF2A

tetradic

#2A3FAF #AF2A82 #AF9A2A #2AAF57

square

#2A3FAF #AF2A82 #AF9A2A #2AAF57

split-complementary

#2A3FAF #AF572A #82AF2A

monochromatic

#121B4C #1E2D7E #2A3FAF #445AD2 #7586DE

Accessibility & contrast

On white

8.65

#2A3FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2A3FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3FAF

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3FAF	#FFFFFF	#000000	##FFFFFF
##2A3FAF	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0045AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2a3faf;
/* rgb */ color: rgb(42, 63, 175);
/* oklch */ color: oklch(42.8% 0.179 269.0);

Tailwind

colors: {
  custom: {
    50: '#7874c8',
    500: '#2a3faf',
    950: '#000000',
  },
}

SCSS

$custom: #2a3faf;
$custom-light: #7874c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3faf",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 175
  },
  "hsl": {
    "h": 230.526,
    "s": 61.29,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42754,
    "c": 0.17898,
    "h": 269
  },
  "luminance": 0.07142
}

Semantic roles & 50–950 ramp

primary

#2A3FAF

secondary

#C6B86F

accent

#CB43E4

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2A3FAF

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

Preview Lab → · Contrast checker → · Palette generator →