#284F97#284F97

#284F97 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.0% C 0.126 H 261.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#284F97
RGB	rgb(40, 79, 151)
HSL	hsl(219, 58%, 37%)
HSV	hsv(219, 74%, 59%)
CMYK	cmyk(73.5%, 47.7%, 0%, 40.8%)
CIE-LAB	lab(34.55, 12.13, -43.53)
CIE-LCH	lch(34.55, 45.19, 285.57°)
OKLab	oklab(43.98% -0.0189 -0.1248)
OKLCH	oklch(43.98% 0.126 261.4)
XYZ	xyz(9.2550, 8.2765, 30.3819)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F97 #977028

analogous

#288697 #284F97 #392897

triadic

#284F97 #97284F #4F9728

tetradic

#284F97 #972886 #977028 #289739

square

#284F97 #972886 #977028 #289739

split-complementary

#284F97 #973928 #869728

monochromatic

#0E1C36 #1B3667 #284F97 #3568C7 #648CD6

Accessibility & contrast

On white

7.91

#284F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#284F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F97

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F97	#FFFFFF	#000000	##FFFFFF
##284F97	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29579A

Deuteranopia (green-blind)

#0E4C96

Tritanopia (blue-blind)

#00606B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #284f97;
/* rgb */ color: rgb(40, 79, 151);
/* oklch */ color: oklch(44.0% 0.126 261.4);

Tailwind

colors: {
  custom: {
    50: '#717fb6',
    500: '#284f97',
    950: '#000000',
  },
}

SCSS

$custom: #284f97;
$custom-light: #717fb6;
$custom-dark: #000000;

JSON

{
  "hex": "#284f97",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 151
  },
  "hsl": {
    "h": 218.919,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.43976,
    "c": 0.12623,
    "h": 261.4
  },
  "luminance": 0.08277
}

Semantic roles & 50–950 ramp

primary

#284F97

secondary

#BC9B5F

accent

#AB46E1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #284F97

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

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