#284E85#284E85

#284E85 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.5% C 0.102 H 257.8°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#284E85
RGB	rgb(40, 78, 133)
HSL	hsl(215, 54%, 34%)
HSV	hsv(215, 70%, 52%)
CMYK	cmyk(69.9%, 41.4%, 0%, 47.8%)
CIE-LAB	lab(33.12, 5.85, -34.83)
CIE-LCH	lch(33.12, 35.32, 279.54°)
OKLab	oklab(42.5% -0.0215 -0.0993)
OKLCH	oklch(42.5% 0.102 257.8)
XYZ	xyz(7.8316, 7.5926, 23.2385)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E85 #855F28

analogous

#287D85 #284E85 #312885

triadic

#284E85 #85284E #4E8528

tetradic

#284E85 #85287D #855F28 #288531

square

#284E85 #85287D #855F28 #288531

split-complementary

#284E85 #853128 #7D8528

monochromatic

#0C1727 #1A3256 #284E85 #366AB4 #5A89CD

Accessibility & contrast

On white

8.34

#284E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#284E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E85

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E85	#FFFFFF	#000000	##FFFFFF
##284E85	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)

#355387

Deuteranopia (green-blind)

#274A84

Tritanopia (blue-blind)

#005B63

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284e85;
/* rgb */ color: rgb(40, 78, 133);
/* oklch */ color: oklch(42.5% 0.102 257.8);

Tailwind

colors: {
  custom: {
    50: '#6d7fa9',
    500: '#284e85',
    950: '#000000',
  },
}

SCSS

$custom: #284e85;
$custom-light: #6d7fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#284e85",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 133
  },
  "hsl": {
    "h": 215.484,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42504,
    "c": 0.10156,
    "h": 257.8
  },
  "luminance": 0.07593
}

Semantic roles & 50–950 ramp

primary

#284E85

secondary

#B38D56

accent

#A14BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #284E85

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

Preview Lab → · Contrast checker → · Palette generator →