#2A257D#2A257D

#2A257D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.4% C 0.143 H 277.8°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#2A257D
RGB	rgb(42, 37, 125)
HSL	hsl(243, 54%, 32%)
HSV	hsv(243, 70%, 49%)
CMYK	cmyk(66.4%, 70.4%, 0%, 51%)
CIE-LAB	lab(21.19, 30.92, -49.10)
CIE-LCH	lch(21.19, 58.02, 302.20°)
OKLab	oklab(33.36% 0.0194 -0.1416)
OKLCH	oklch(33.36% 0.143 277.8)
XYZ	xyz(5.3169, 3.2956, 19.7540)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A257D #787D25

analogous

#254C7D #2A257D #56257D

triadic

#2A257D #7D2A25 #257D2A

tetradic

#2A257D #7D254C #787D25 #257D56

square

#2A257D #7D254C #787D25 #257D56

split-complementary

#2A257D #7D5625 #4C7D25

monochromatic

#0A091F #1A174E #2A257D #3A33AC #5851CB

Accessibility & contrast

On white

12.66

#2A257D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#2A257D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A257D

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A257D	#FFFFFF	#000000	##FFFFFF
##2A257D	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002F7B

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2a257d;
/* rgb */ color: rgb(42, 37, 125);
/* oklch */ color: oklch(33.4% 0.143 277.8);

Tailwind

colors: {
  custom: {
    50: '#6f60a4',
    500: '#2a257d',
    950: '#000000',
  },
}

SCSS

$custom: #2a257d;
$custom-light: #6f60a4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a257d",
  "rgb": {
    "r": 42,
    "g": 37,
    "b": 125
  },
  "hsl": {
    "h": 243.409,
    "s": 54.321,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33364,
    "c": 0.14297,
    "h": 277.8
  },
  "luminance": 0.03296
}

Semantic roles & 50–950 ramp

primary

#2A257D

secondary

#AAAF4F

accent

#DE4AD5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #2A257D

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

Preview Lab → · Contrast checker → · Palette generator →