#2A3EB0#2A3EB0

#2A3EB0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.181 H 269.2°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#2A3EB0
RGB	rgb(42, 62, 176)
HSL	hsl(231, 61%, 43%)
HSV	hsv(231, 76%, 69%)
CMYK	cmyk(76.1%, 64.8%, 0%, 31%)
CIE-LAB	lab(31.97, 33.24, -62.74)
CIE-LCH	lch(31.97, 71.00, 297.91°)
OKLab	oklab(42.67% -0.0026 -0.1815)
OKLCH	oklch(42.67% 0.181 269.2)
XYZ	xyz(10.5112, 7.0709, 41.8767)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3EB0 #B09C2A

analogous

#2A81B0 #2A3EB0 #592AB0

triadic

#2A3EB0 #B02A3E #3EB02A

tetradic

#2A3EB0 #B02A81 #B09C2A #2AB059

square

#2A3EB0 #B02A81 #B09C2A #2AB059

split-complementary

#2A3EB0 #B0592A #81B02A

monochromatic

#121B4D #1E2D7F #2A3EB0 #455AD3 #7686DE

Accessibility & contrast

On white

8.70

#2A3EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2A3EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3EB0

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3EB0	#FFFFFF	#000000	##FFFFFF
##2A3EB0	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B4

Deuteranopia (green-blind)

#0045AE

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a3eb0;
/* rgb */ color: rgb(42, 62, 176);
/* oklch */ color: oklch(42.7% 0.181 269.2);

Tailwind

colors: {
  custom: {
    50: '#7973c9',
    500: '#2a3eb0',
    950: '#000000',
  },
}

SCSS

$custom: #2a3eb0;
$custom-light: #7973c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3eb0",
  "rgb": {
    "r": 42,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 231.045,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42665,
    "c": 0.18148,
    "h": 269.2
  },
  "luminance": 0.07072
}

Semantic roles & 50–950 ramp

primary

#2A3EB0

secondary

#C6B970

accent

#CC43E5

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2A3EB0

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

Preview Lab → · Contrast checker → · Palette generator →