#281A7F#281A7F

#281A7F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.158 H 278.7°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#281A7F
RGB	rgb(40, 26, 127)
HSL	hsl(248, 66%, 30%)
HSV	hsv(248, 80%, 50%)
CMYK	cmyk(68.5%, 79.5%, 0%, 50.2%)
CIE-LAB	lab(18.89, 37.86, -54.15)
CIE-LCH	lch(18.89, 66.08, 304.96°)
OKLab	oklab(31.75% 0.0238 -0.1564)
OKLCH	oklch(31.75% 0.158 278.7)
XYZ	xyz(5.0740, 2.7218, 20.3325)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A7F #717F1A

analogous

#1A3E7F #281A7F #5B1A7F

triadic

#281A7F #7F281A #1A7F28

tetradic

#281A7F #7F1A3E #717F1A #1A7F5B

square

#281A7F #7F1A3E #717F1A #1A7F5B

split-complementary

#281A7F #7F5B1A #3E7F1A

monochromatic

#080519 #18104C #281A7F #3824B2 #523CD7

Accessibility & contrast

On white

13.60

#281A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A7F

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A7F	#FFFFFF	#000000	##FFFFFF
##281A7F	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003282

Deuteranopia (green-blind)

#002A7D

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281a7f;
/* rgb */ color: rgb(40, 26, 127);
/* oklch */ color: oklch(31.8% 0.158 278.7);

Tailwind

colors: {
  custom: {
    50: '#6f59a5',
    500: '#281a7f',
    950: '#000000',
  },
}

SCSS

$custom: #281a7f;
$custom-light: #6f59a5;
$custom-dark: #000000;

JSON

{
  "hex": "#281a7f",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 127
  },
  "hsl": {
    "h": 248.317,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.31751,
    "c": 0.15822,
    "h": 278.7
  },
  "luminance": 0.02722
}

Semantic roles & 50–950 ramp

primary

#281A7F

secondary

#A3B342

accent

#E93FD1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281A7F

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

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