#281FAA#281FAA

#281FAA is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.3% C 0.206 H 272.9°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#281FAA
RGB	rgb(40, 31, 170)
HSL	hsl(244, 69%, 39%)
HSV	hsv(244, 82%, 67%)
CMYK	cmyk(76.5%, 81.8%, 0%, 33.3%)
CIE-LAB	lab(24.74, 49.02, -71.07)
CIE-LCH	lch(24.74, 86.33, 304.60°)
OKLab	oklab(37.28% 0.0104 -0.2056)
OKLCH	oklch(37.28% 0.206 272.9)
XYZ	xyz(8.6183, 4.3325, 38.4045)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281FAA #A1AA1F

analogous

#1F5CAA #281FAA #6E1FAA

triadic

#281FAA #AA281F #1FAA28

tetradic

#281FAA #AA1F5C #A1AA1F #1FAA6E

square

#281FAA #AA1F5C #A1AA1F #1FAA6E

split-complementary

#281FAA #AA6E1F #5CAA1F

monochromatic

#100C42 #1C1676 #281FAA #392DD9 #6A61E2

Accessibility & contrast

On white

11.25

#281FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#281FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281FAA

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281FAA	#FFFFFF	#000000	##FFFFFF
##281FAA	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AE

Deuteranopia (green-blind)

#0034A8

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #281faa;
/* rgb */ color: rgb(40, 31, 170);
/* oklch */ color: oklch(37.3% 0.206 272.9);

Tailwind

colors: {
  custom: {
    50: '#795fc5',
    500: '#281faa',
    950: '#000000',
  },
}

SCSS

$custom: #281faa;
$custom-light: #795fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#281faa",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 170
  },
  "hsl": {
    "h": 243.885,
    "s": 69.154,
    "l": 39.412
  },
  "oklch": {
    "l": 0.3728,
    "c": 0.20586,
    "h": 272.9
  },
  "luminance": 0.04333
}

Semantic roles & 50–950 ramp

primary

#281FAA

secondary

#C0C75E

accent

#EC3CE1

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #281FAA

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

Preview Lab → · Contrast checker → · Palette generator →