#281C7C#281C7C

#281C7C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.152 H 278.8°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#281C7C
RGB	rgb(40, 28, 124)
HSL	hsl(248, 63%, 30%)
HSV	hsv(248, 77%, 49%)
CMYK	cmyk(67.7%, 77.4%, 0%, 51.4%)
CIE-LAB	lab(18.96, 35.76, -52.14)
CIE-LCH	lch(18.96, 63.23, 304.44°)
OKLab	oklab(31.7% 0.0234 -0.1506)
OKLCH	oklch(31.7% 0.152 278.8)
XYZ	xyz(4.9272, 2.7365, 19.3334)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C7C #707C1C

analogous

#1C407C #281C7C #581C7C

triadic

#281C7C #7C281C #1C7C28

tetradic

#281C7C #7C1C40 #707C1C #1C7C58

square

#281C7C #7C1C40 #707C1C #1C7C58

split-complementary

#281C7C #7C581C #407C1C

monochromatic

#080619 #18114A #281C7C #3827AE #513FD4

Accessibility & contrast

On white

13.57

#281C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C7C

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C7C	#FFFFFF	#000000	##FFFFFF
##281C7C	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327F

Deuteranopia (green-blind)

#002A7A

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281c7c;
/* rgb */ color: rgb(40, 28, 124);
/* oklch */ color: oklch(31.7% 0.152 278.8);

Tailwind

colors: {
  custom: {
    50: '#6f5aa3',
    500: '#281c7c',
    950: '#000000',
  },
}

SCSS

$custom: #281c7c;
$custom-light: #6f5aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#281c7c",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 124
  },
  "hsl": {
    "h": 247.5,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.31697,
    "c": 0.15236,
    "h": 278.8
  },
  "luminance": 0.02737
}

Semantic roles & 50–950 ramp

primary

#281C7C

secondary

#A2B044

accent

#E642D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281C7C

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

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