#2A388C#2A388C

#2A388C is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.140 H 271.0°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#2A388C
RGB	rgb(42, 56, 140)
HSL	hsl(231, 54%, 36%)
HSV	hsv(231, 70%, 55%)
CMYK	cmyk(70%, 60%, 0%, 45.1%)
CIE-LAB	lab(27.33, 23.80, -48.46)
CIE-LCH	lch(27.33, 53.99, 296.16°)
OKLab	oklab(38.28% 0.0026 -0.1396)
OKLCH	oklch(38.28% 0.14 271)
XYZ	xyz(7.1010, 5.2134, 25.4379)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A388C #8C7E2A

analogous

#2A698C #2A388C #4D2A8C

triadic

#2A388C #8C2A38 #388C2A

tetradic

#2A388C #8C2A69 #8C7E2A #2A8C4D

square

#2A388C #8C2A69 #8C7E2A #2A8C4D

split-complementary

#2A388C #8C4D2A #698C2A

monochromatic

#0E122E #1C255D #2A388C #384BBB #6171D0

Accessibility & contrast

On white

10.28

#2A388C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2A388C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A388C

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A388C	#FFFFFF	#000000	##FFFFFF
##2A388C	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458F

Deuteranopia (green-blind)

#003C8A

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a388c;
/* rgb */ color: rgb(42, 56, 140);
/* oklch */ color: oklch(38.3% 0.140 271.0);

Tailwind

colors: {
  custom: {
    50: '#716eae',
    500: '#2a388c',
    950: '#000000',
  },
}

SCSS

$custom: #2a388c;
$custom-light: #716eae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a388c",
  "rgb": {
    "r": 42,
    "g": 56,
    "b": 140
  },
  "hsl": {
    "h": 231.429,
    "s": 53.846,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38282,
    "c": 0.13967,
    "h": 271
  },
  "luminance": 0.05214
}

Semantic roles & 50–950 ramp

primary

#2A388C

secondary

#B5A95C

accent

#C84BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A388C

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

Preview Lab → · Contrast checker → · Palette generator →