#284E8E#284E8E

#284E8E is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.1% C 0.115 H 260.2°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#284E8E
RGB	rgb(40, 78, 142)
HSL	hsl(218, 56%, 36%)
HSV	hsv(218, 72%, 56%)
CMYK	cmyk(71.8%, 45.1%, 0%, 44.3%)
CIE-LAB	lab(33.67, 9.32, -39.47)
CIE-LCH	lch(33.67, 40.55, 283.28°)
OKLab	oklab(43.11% -0.0195 -0.1129)
OKLCH	oklch(43.11% 0.115 260.2)
XYZ	xyz(8.4802, 7.8520, 26.6546)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E8E #8E6828

analogous

#28818E #284E8E #35288E

triadic

#284E8E #8E284E #4E8E28

tetradic

#284E8E #8E2881 #8E6828 #288E35

square

#284E8E #8E2881 #8E6828 #288E35

split-complementary

#284E8E #8E3528 #818E28

monochromatic

#0D1A2F #1B345E #284E8E #3568BE #5F8AD2

Accessibility & contrast

On white

8.17

#284E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#284E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E8E

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E8E	#FFFFFF	#000000	##FFFFFF
##284E8E	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5490

Deuteranopia (green-blind)

#1C4B8D

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284e8e;
/* rgb */ color: rgb(40, 78, 142);
/* oklch */ color: oklch(43.1% 0.115 260.2);

Tailwind

colors: {
  custom: {
    50: '#6f7faf',
    500: '#284e8e',
    950: '#000000',
  },
}

SCSS

$custom: #284e8e;
$custom-light: #6f7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#284e8e",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 142
  },
  "hsl": {
    "h": 217.647,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43111,
    "c": 0.11456,
    "h": 260.2
  },
  "luminance": 0.07853
}

Semantic roles & 50–950 ramp

primary

#284E8E

secondary

#B7955B

accent

#A748DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #284E8E

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

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