#284A97#284A97

#284A97 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.9% C 0.133 H 263.8°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#284A97
RGB	rgb(40, 74, 151)
HSL	hsl(222, 58%, 37%)
HSV	hsv(222, 74%, 59%)
CMYK	cmyk(73.5%, 51%, 0%, 40.8%)
CIE-LAB	lab(33.10, 15.49, -45.88)
CIE-LCH	lch(33.10, 48.42, 288.66°)
OKLab	oklab(42.86% -0.0143 -0.1318)
OKLCH	oklch(42.86% 0.133 263.8)
XYZ	xyz(8.9078, 7.5821, 30.2662)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A97 #977528

analogous

#288197 #284A97 #3E2897

triadic

#284A97 #97284A #4A9728

tetradic

#284A97 #972881 #977528 #28973E

square

#284A97 #972881 #977528 #28973E

split-complementary

#284A97 #973E28 #819728

monochromatic

#0E1B36 #1B3267 #284A97 #3562C7 #6487D6

Accessibility & contrast

On white

8.34

#284A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#284A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A97

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A97	#FFFFFF	#000000	##FFFFFF
##284A97	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C539A

Deuteranopia (green-blind)

#004995

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284a97;
/* rgb */ color: rgb(40, 74, 151);
/* oklch */ color: oklch(42.9% 0.133 263.8);

Tailwind

colors: {
  custom: {
    50: '#717cb6',
    500: '#284a97',
    950: '#000000',
  },
}

SCSS

$custom: #284a97;
$custom-light: #717cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#284a97",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 151
  },
  "hsl": {
    "h": 221.622,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.42862,
    "c": 0.13257,
    "h": 263.8
  },
  "luminance": 0.07583
}

Semantic roles & 50–950 ramp

primary

#284A97

secondary

#BC9F5F

accent

#B246E1

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #284A97

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

Preview Lab → · Contrast checker → · Palette generator →