#2B278E#2B278E

#2B278E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.5% C 0.163 H 275.8°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B278E
RGB	rgb(43, 39, 142)
HSL	hsl(242, 57%, 35%)
HSV	hsv(242, 73%, 56%)
CMYK	cmyk(69.7%, 72.5%, 0%, 44.3%)
CIE-LAB	lab(23.40, 35.73, -56.15)
CIE-LCH	lch(23.40, 66.55, 302.47°)
OKLab	oklab(35.48% 0.0166 -0.1622)
OKLCH	oklch(35.48% 0.163 275.8)
XYZ	xyz(6.6027, 3.9170, 25.9940)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B278E #8A8E27

analogous

#27568E #2B278E #5E278E

triadic

#2B278E #8E2B27 #278E2B

tetradic

#2B278E #8E2756 #8A8E27 #278E5E

square

#2B278E #8E2756 #8A8E27 #278E5E

split-complementary

#2B278E #8E5E27 #568E27

monochromatic

#0E0D2E #1C1A5E #2B278E #3A34BE #615DD2

Accessibility & contrast

On white

11.77

#2B278E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2B278E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B278E

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B278E	#FFFFFF	#000000	##FFFFFF
##2B278E	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C91

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b278e;
/* rgb */ color: rgb(43, 39, 142);
/* oklch */ color: oklch(35.5% 0.163 275.8);

Tailwind

colors: {
  custom: {
    50: '#7362b0',
    500: '#2b278e',
    950: '#000000',
  },
}

SCSS

$custom: #2b278e;
$custom-light: #7362b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b278e",
  "rgb": {
    "r": 43,
    "g": 39,
    "b": 142
  },
  "hsl": {
    "h": 242.33,
    "s": 56.906,
    "l": 35.49
  },
  "oklch": {
    "l": 0.35477,
    "c": 0.16307,
    "h": 275.8
  },
  "luminance": 0.03918
}

Semantic roles & 50–950 ramp

primary

#2B278E

secondary

#B4B859

accent

#E048DA

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2B278E

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

Preview Lab → · Contrast checker → · Palette generator →