#2A3A8F#2A3A8F

#2A3A8F is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.141 H 270.4°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#2A3A8F
RGB	rgb(42, 58, 143)
HSL	hsl(230, 55%, 36%)
HSV	hsv(230, 71%, 56%)
CMYK	cmyk(70.6%, 59.4%, 0%, 43.9%)
CIE-LAB	lab(28.12, 23.58, -49.05)
CIE-LCH	lch(28.12, 54.42, 295.67°)
OKLab	oklab(38.94% 0.0009 -0.1413)
OKLCH	oklch(38.94% 0.141 270.4)
XYZ	xyz(7.4241, 5.5008, 26.6518)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3A8F #8F7F2A

analogous

#2A6D8F #2A3A8F #4D2A8F

triadic

#2A3A8F #8F2A3A #3A8F2A

tetradic

#2A3A8F #8F2A6D #8F7F2A #2A8F4D

square

#2A3A8F #8F2A6D #8F7F2A #2A8F4D

split-complementary

#2A3A8F #8F4D2A #6D8F2A

monochromatic

#0E1430 #1C2760 #2A3A8F #384DBE #6274D1

Accessibility & contrast

On white

10.00

#2A3A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2A3A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3A8F

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3A8F	#FFFFFF	#000000	##FFFFFF
##2A3A8F	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#003E8D

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2a3a8f;
/* rgb */ color: rgb(42, 58, 143);
/* oklch */ color: oklch(38.9% 0.141 270.4);

Tailwind

colors: {
  custom: {
    50: '#7170b0',
    500: '#2a3a8f',
    950: '#000000',
  },
}

SCSS

$custom: #2a3a8f;
$custom-light: #7170b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3a8f",
  "rgb": {
    "r": 42,
    "g": 58,
    "b": 143
  },
  "hsl": {
    "h": 230.495,
    "s": 54.595,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38941,
    "c": 0.14133,
    "h": 270.4
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#2A3A8F

secondary

#B7A95E

accent

#C64ADE

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2A3A8F

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

Preview Lab → · Contrast checker → · Palette generator →