#2A1F77#2A1F77

#2A1F77 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.142 H 280.3°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F77
RGB	rgb(42, 31, 119)
HSL	hsl(248, 59%, 29%)
HSV	hsv(248, 74%, 47%)
CMYK	cmyk(64.7%, 73.9%, 0%, 53.3%)
CIE-LAB	lab(19.24, 32.58, -48.47)
CIE-LCH	lch(19.24, 58.40, 303.90°)
OKLab	oklab(31.79% 0.0253 -0.1398)
OKLCH	oklch(31.79% 0.142 280.3)
XYZ	xyz(4.7735, 2.8038, 17.7388)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F77 #6C771F

analogous

#1F4077 #2A1F77 #561F77

triadic

#2A1F77 #772A1F #1F772A

tetradic

#2A1F77 #771F40 #6C771F #1F7756

square

#2A1F77 #771F40 #6C771F #1F7756

split-complementary

#2A1F77 #77561F #40771F

monochromatic

#090618 #191246 #2A1F77 #3B2CA8 #5443CE

Accessibility & contrast

On white

13.45

#2A1F77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#2A1F77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F77

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F77	#FFFFFF	#000000	##FFFFFF
##2A1F77	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002B75

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #2a1f77;
/* rgb */ color: rgb(42, 31, 119);
/* oklch */ color: oklch(31.8% 0.142 280.3);

Tailwind

colors: {
  custom: {
    50: '#6e5c9f',
    500: '#2a1f77',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f77;
$custom-light: #6e5c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f77",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 119
  },
  "hsl": {
    "h": 247.5,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31785,
    "c": 0.14207,
    "h": 280.3
  },
  "luminance": 0.02804
}

Semantic roles & 50–950 ramp

primary

#2A1F77

secondary

#9EAB47

accent

#E246CE

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #2A1F77

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

Preview Lab → · Contrast checker → · Palette generator →