#284F87#284F87

#284F87 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 42.9% C 0.103 H 257.7°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#284F87
RGB	rgb(40, 79, 135)
HSL	hsl(215, 54%, 34%)
HSV	hsv(215, 70%, 53%)
CMYK	cmyk(70.4%, 41.5%, 0%, 47.1%)
CIE-LAB	lab(33.54, 5.96, -35.39)
CIE-LCH	lch(33.54, 35.88, 279.55°)
OKLab	oklab(42.87% -0.0221 -0.1009)
OKLCH	oklch(42.87% 0.103 257.7)
XYZ	xyz(8.0426, 7.7915, 23.9970)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F87 #876028

analogous

#287F87 #284F87 #302887

triadic

#284F87 #87284F #4F8728

tetradic

#284F87 #87287F #876028 #288730

square

#284F87 #87287F #876028 #288730

split-complementary

#284F87 #873028 #7F8728

monochromatic

#0C1829 #1A3358 #284F87 #366BB6 #5B8ACE

Accessibility & contrast

On white

8.21

#284F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#284F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F87

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F87	#FFFFFF	#000000	##FFFFFF
##284F87	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355489

Deuteranopia (green-blind)

#274B86

Tritanopia (blue-blind)

#005C64

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284f87;
/* rgb */ color: rgb(40, 79, 135);
/* oklch */ color: oklch(42.9% 0.103 257.7);

Tailwind

colors: {
  custom: {
    50: '#6e7faa',
    500: '#284f87',
    950: '#000000',
  },
}

SCSS

$custom: #284f87;
$custom-light: #6e7faa;
$custom-dark: #000000;

JSON

{
  "hex": "#284f87",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 135
  },
  "hsl": {
    "h": 215.368,
    "s": 54.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.42873,
    "c": 0.10326,
    "h": 257.7
  },
  "luminance": 0.07792
}

Semantic roles & 50–950 ramp

primary

#284F87

secondary

#B48E57

accent

#A14ADE

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #284F87

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

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