#281F65#281F65

#281F65 is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.8% C 0.118 H 282.4°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#281F65
RGB	rgb(40, 31, 101)
HSL	hsl(248, 53%, 26%)
HSV	hsv(248, 69%, 40%)
CMYK	cmyk(60.4%, 69.3%, 0%, 60.4%)
CIE-LAB	lab(17.32, 26.03, -39.94)
CIE-LCH	lch(17.32, 47.67, 303.10°)
OKLab	oklab(29.83% 0.0253 -0.1148)
OKLCH	oklch(29.83% 0.118 282.4)
XYZ	xyz(3.7133, 2.3704, 12.5713)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F65 #5C651F

analogous

#1F3965 #281F65 #4B1F65

triadic

#281F65 #65281F #1F6528

tetradic

#281F65 #651F39 #5C651F #1F654B

square

#281F65 #651F39 #5C651F #1F654B

split-complementary

#281F65 #654B1F #39651F

monochromatic

#090717 #151136 #281F65 #3B2D94 #4D3CC3

Accessibility & contrast

On white

14.25

#281F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#281F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F65

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F65	#FFFFFF	#000000	##FFFFFF
##281F65	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D67

Deuteranopia (green-blind)

#002864

Tritanopia (blue-blind)

#08313F

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281f65;
/* rgb */ color: rgb(40, 31, 101);
/* oklch */ color: oklch(29.8% 0.118 282.4);

Tailwind

colors: {
  custom: {
    50: '#695b92',
    500: '#281f65',
    950: '#000000',
  },
}

SCSS

$custom: #281f65;
$custom-light: #695b92;
$custom-dark: #000000;

JSON

{
  "hex": "#281f65",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 101
  },
  "hsl": {
    "h": 247.714,
    "s": 53.03,
    "l": 25.882
  },
  "oklch": {
    "l": 0.29827,
    "c": 0.1176,
    "h": 282.4
  },
  "luminance": 0.02371
}

Semantic roles & 50–950 ramp

primary

#281F65

secondary

#8F9946

accent

#DC4BCA

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07040D

muted

#7A797E

Preview Lab

Preview with #281F65

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

Preview Lab → · Contrast checker → · Palette generator →