#2A3F8B#2A3F8B

#2A3F8B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.6% C 0.129 H 268.3°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F8B
RGB	rgb(42, 63, 139)
HSL	hsl(227, 54%, 35%)
HSV	hsv(227, 70%, 55%)
CMYK	cmyk(69.8%, 54.7%, 0%, 45.5%)
CIE-LAB	lab(29.19, 18.65, -44.84)
CIE-LCH	lch(29.19, 48.57, 292.58°)
OKLab	oklab(39.65% -0.0038 -0.1289)
OKLCH	oklch(39.65% 0.129 268.3)
XYZ	xyz(7.3910, 5.9106, 25.1724)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F8B #8B762A

analogous

#2A6F8B #2A3F8B #452A8B

triadic

#2A3F8B #8B2A3F #3F8B2A

tetradic

#2A3F8B #8B2A6F #8B762A #2A8B45

square

#2A3F8B #8B2A6F #8B762A #2A8B45

split-complementary

#2A3F8B #8B452A #6F8B2A

monochromatic

#0E142D #1C2A5C #2A3F8B #3854BA #6078CF

Accessibility & contrast

On white

9.62

#2A3F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2A3F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F8B

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F8B	#FFFFFF	#000000	##FFFFFF
##2A3F8B	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A498E

Deuteranopia (green-blind)

#004189

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2a3f8b;
/* rgb */ color: rgb(42, 63, 139);
/* oklch */ color: oklch(39.6% 0.129 268.3);

Tailwind

colors: {
  custom: {
    50: '#7073ad',
    500: '#2a3f8b',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f8b;
$custom-light: #7073ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f8b",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 139
  },
  "hsl": {
    "h": 227.01,
    "s": 53.591,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39645,
    "c": 0.12896,
    "h": 268.3
  },
  "luminance": 0.05911
}

Semantic roles & 50–950 ramp

primary

#2A3F8B

secondary

#B5A25C

accent

#BD4BDD

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2A3F8B

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

Preview Lab → · Contrast checker → · Palette generator →