#2D3F8A#2D3F8A

#2D3F8A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.127 H 269.7°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#2D3F8A
RGB	rgb(45, 63, 138)
HSL	hsl(228, 51%, 36%)
HSV	hsv(228, 67%, 54%)
CMYK	cmyk(67.4%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(29.28, 18.77, -44.07)
CIE-LCH	lch(29.28, 47.90, 293.07°)
OKLab	oklab(39.74% -0.0008 -0.1265)
OKLCH	oklch(39.74% 0.127 269.7)
XYZ	xyz(7.4456, 5.9472, 24.7954)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D3F8A #8A782D

analogous

#2D6D8A #2D3F8A #492D8A

triadic

#2D3F8A #8A2D3F #3F8A2D

tetradic

#2D3F8A #8A2D6D #8A782D #2D8A49

square

#2D3F8A #8A2D6D #8A782D #2D8A49

split-complementary

#2D3F8A #8A492D #6D8A2D

monochromatic

#0F152E #1E2A5C #2D3F8A #3C54B8 #6579CD

Accessibility & contrast

On white

9.59

#2D3F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2D3F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D3F8A

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D3F8A	#FFFFFF	#000000	##FFFFFF
##2D3F8A	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E498D

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2d3f8a;
/* rgb */ color: rgb(45, 63, 138);
/* oklch */ color: oklch(39.7% 0.127 269.7);

Tailwind

colors: {
  custom: {
    50: '#7173ad',
    500: '#2d3f8a',
    950: '#000000',
  },
}

SCSS

$custom: #2d3f8a;
$custom-light: #7173ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2d3f8a",
  "rgb": {
    "r": 45,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 228.387,
    "s": 50.82,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39737,
    "c": 0.12654,
    "h": 269.7
  },
  "luminance": 0.05948
}

Semantic roles & 50–950 ramp

primary

#2D3F8A

secondary

#B3A360

accent

#BF4DDA

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2D3F8A

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

Preview Lab → · Contrast checker → · Palette generator →