#2A258B#2A258B

#2A258B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.8% C 0.162 H 276.1°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#2A258B
RGB	rgb(42, 37, 139)
HSL	hsl(243, 58%, 35%)
HSV	hsv(243, 73%, 55%)
CMYK	cmyk(69.8%, 73.4%, 0%, 45.5%)
CIE-LAB	lab(22.58, 35.79, -55.62)
CIE-LCH	lch(22.58, 66.14, 302.76°)
OKLab	oklab(34.78% 0.0171 -0.1607)
OKLCH	oklch(34.78% 0.162 276.1)
XYZ	xyz(6.2751, 3.6789, 24.8005)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A258B #868B25

analogous

#25538B #2A258B #5D258B

triadic

#2A258B #8B2A25 #258B2A

tetradic

#2A258B #8B2553 #868B25 #258B5D

square

#2A258B #8B2553 #868B25 #258B5D

split-complementary

#2A258B #8B5D25 #538B25

monochromatic

#0D0B2A #1B185B #2A258B #3932BB #5E58D3

Accessibility & contrast

On white

12.10

#2A258B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#2A258B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A258B

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A258B	#FFFFFF	#000000	##FFFFFF
##2A258B	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2a258b;
/* rgb */ color: rgb(42, 37, 139);
/* oklch */ color: oklch(34.8% 0.162 276.1);

Tailwind

colors: {
  custom: {
    50: '#7261ae',
    500: '#2a258b',
    950: '#000000',
  },
}

SCSS

$custom: #2a258b;
$custom-light: #7261ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a258b",
  "rgb": {
    "r": 42,
    "g": 37,
    "b": 139
  },
  "hsl": {
    "h": 242.941,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34783,
    "c": 0.16163,
    "h": 276.1
  },
  "luminance": 0.03679
}

Semantic roles & 50–950 ramp

primary

#2A258B

secondary

#B2B755

accent

#E147DA

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #2A258B

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

Preview Lab → · Contrast checker → · Palette generator →