#2A3A88#2A3A88

#2A3A88 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.4% C 0.131 H 270.3°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#2A3A88
RGB	rgb(42, 58, 136)
HSL	hsl(230, 53%, 35%)
HSV	hsv(230, 69%, 53%)
CMYK	cmyk(69.1%, 57.4%, 0%, 46.7%)
CIE-LAB	lab(27.56, 20.93, -45.62)
CIE-LCH	lch(27.56, 50.19, 294.64°)
OKLab	oklab(38.35% 0.0007 -0.1312)
OKLCH	oklch(38.35% 0.131 270.3)
XYZ	xyz(6.9103, 5.2953, 23.9457)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3A88 #88782A

analogous

#2A6988 #2A3A88 #492A88

triadic

#2A3A88 #882A3A #3A882A

tetradic

#2A3A88 #882A69 #88782A #2A8849

square

#2A3A88 #882A69 #88782A #2A8849

split-complementary

#2A3A88 #88492A #69882A

monochromatic

#0D122A #1C2659 #2A3A88 #384EB7 #5F72CE

Accessibility & contrast

On white

10.20

#2A3A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2A3A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3A88

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3A88	#FFFFFF	#000000	##FFFFFF
##2A3A88	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458B

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a3a88;
/* rgb */ color: rgb(42, 58, 136);
/* oklch */ color: oklch(38.4% 0.131 270.3);

Tailwind

colors: {
  custom: {
    50: '#706fab',
    500: '#2a3a88',
    950: '#000000',
  },
}

SCSS

$custom: #2a3a88;
$custom-light: #706fab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3a88",
  "rgb": {
    "r": 42,
    "g": 58,
    "b": 136
  },
  "hsl": {
    "h": 229.787,
    "s": 52.809,
    "l": 34.902
  },
  "oklch": {
    "l": 0.3835,
    "c": 0.13125,
    "h": 270.3
  },
  "luminance": 0.05296
}

Semantic roles & 50–950 ramp

primary

#2A3A88

secondary

#B3A45B

accent

#C44CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A3A88

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

Preview Lab → · Contrast checker → · Palette generator →