#2A388B#2A388B

#2A388B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.2% C 0.138 H 271.1°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2A388B
RGB	rgb(42, 56, 139)
HSL	hsl(231, 54%, 35%)
HSV	hsv(231, 70%, 55%)
CMYK	cmyk(69.8%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(27.25, 23.42, -47.98)
CIE-LCH	lch(27.25, 53.39, 296.02°)
OKLab	oklab(38.2% 0.0025 -0.1382)
OKLCH	oklch(38.2% 0.138 271.1)
XYZ	xyz(7.0276, 5.1840, 25.0513)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A388B #8B7D2A

analogous

#2A688B #2A388B #4C2A8B

triadic

#2A388B #8B2A38 #388B2A

tetradic

#2A388B #8B2A68 #8B7D2A #2A8B4C

square

#2A388B #8B2A68 #8B7D2A #2A8B4C

split-complementary

#2A388B #8B4C2A #688B2A

monochromatic

#0E122D #1C255C #2A388B #384BBA #6070CF

Accessibility & contrast

On white

10.31

#2A388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2A388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A388B

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A388B	#FFFFFF	#000000	##FFFFFF
##2A388B	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2a388b;
/* rgb */ color: rgb(42, 56, 139);
/* oklch */ color: oklch(38.2% 0.138 271.1);

Tailwind

colors: {
  custom: {
    50: '#706eae',
    500: '#2a388b',
    950: '#000000',
  },
}

SCSS

$custom: #2a388b;
$custom-light: #706eae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a388b",
  "rgb": {
    "r": 42,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 231.34,
    "s": 53.591,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38196,
    "c": 0.13824,
    "h": 271.1
  },
  "luminance": 0.05185
}

Semantic roles & 50–950 ramp

primary

#2A388B

secondary

#B5A85C

accent

#C84BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A388B

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

Preview Lab → · Contrast checker → · Palette generator →