#281A7E#281A7E

#281A7E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.6% C 0.157 H 278.8°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#281A7E
RGB	rgb(40, 26, 126)
HSL	hsl(248, 66%, 30%)
HSV	hsv(248, 79%, 49%)
CMYK	cmyk(68.3%, 79.4%, 0%, 50.6%)
CIE-LAB	lab(18.78, 37.54, -53.70)
CIE-LCH	lch(18.78, 65.52, 304.95°)
OKLab	oklab(31.64% 0.0241 -0.1551)
OKLCH	oklch(31.64% 0.157 278.8)
XYZ	xyz(5.0092, 2.6958, 19.9910)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A7E #707E1A

analogous

#1A3E7E #281A7E #5A1A7E

triadic

#281A7E #7E281A #1A7E28

tetradic

#281A7E #7E1A3E #707E1A #1A7E5A

square

#281A7E #7E1A3E #707E1A #1A7E5A

split-complementary

#281A7E #7E5A1A #3E7E1A

monochromatic

#080519 #18104B #281A7E #3824B1 #513CD7

Accessibility & contrast

On white

13.64

#281A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A7E

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A7E	#FFFFFF	#000000	##FFFFFF
##281A7E	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281a7e;
/* rgb */ color: rgb(40, 26, 126);
/* oklch */ color: oklch(31.6% 0.157 278.8);

Tailwind

colors: {
  custom: {
    50: '#6f59a4',
    500: '#281a7e',
    950: '#000000',
  },
}

SCSS

$custom: #281a7e;
$custom-light: #6f59a4;
$custom-dark: #000000;

JSON

{
  "hex": "#281a7e",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 126
  },
  "hsl": {
    "h": 248.4,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3164,
    "c": 0.15695,
    "h": 278.8
  },
  "luminance": 0.02696
}

Semantic roles & 50–950 ramp

primary

#281A7E

secondary

#A2B242

accent

#E93FD1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281A7E

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

Preview Lab → · Contrast checker → · Palette generator →