#2B1F77#2B1F77

#2B1F77 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.142 H 280.9°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F77
RGB	rgb(43, 31, 119)
HSL	hsl(248, 59%, 29%)
HSV	hsv(248, 74%, 47%)
CMYK	cmyk(63.9%, 73.9%, 0%, 53.3%)
CIE-LAB	lab(19.33, 32.73, -48.32)
CIE-LCH	lch(19.33, 58.36, 304.11°)
OKLab	oklab(31.87% 0.0268 -0.1393)
OKLCH	oklch(31.87% 0.142 280.9)
XYZ	xyz(4.8150, 2.8251, 17.7408)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F77 #6B771F

analogous

#1F3F77 #2B1F77 #571F77

triadic

#2B1F77 #772B1F #1F772B

tetradic

#2B1F77 #771F3F #6B771F #1F7757

square

#2B1F77 #771F3F #6B771F #1F7757

split-complementary

#2B1F77 #77571F #3F771F

monochromatic

#090618 #191246 #2B1F77 #3D2CA8 #5643CE

Accessibility & contrast

On white

13.42

#2B1F77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#2B1F77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F77

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F77	#FFFFFF	#000000	##FFFFFF
##2B1F77	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002C75

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #2b1f77;
/* rgb */ color: rgb(43, 31, 119);
/* oklch */ color: oklch(31.9% 0.142 280.9);

Tailwind

colors: {
  custom: {
    50: '#6f5c9f',
    500: '#2b1f77',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f77;
$custom-light: #6f5c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f77",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 119
  },
  "hsl": {
    "h": 248.182,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31871,
    "c": 0.14188,
    "h": 280.9
  },
  "luminance": 0.02825
}

Semantic roles & 50–950 ramp

primary

#2B1F77

secondary

#9DAB47

accent

#E246CD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #2B1F77

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

Preview Lab → · Contrast checker → · Palette generator →