#10284A#10284A

#10284A is a dark, moderate blue. Relative luminance 0.021; OKLCH L 27.8% C 0.070 H 257.5°. Best body text is #FFFFFF at 14.74:1 contrast (WCAG AA passes).

Color values

HEX	#10284A
RGB	rgb(16, 40, 74)
HSL	hsl(215, 64%, 18%)
HSV	hsv(215, 78%, 29%)
CMYK	cmyk(78.4%, 45.9%, 0%, 71%)
CIE-LAB	lab(16.11, 4.25, -23.86)
CIE-LCH	lch(16.11, 24.24, 280.09°)
OKLab	oklab(27.8% -0.0151 -0.0681)
OKLCH	oklch(27.8% 0.07 257.5)
XYZ	xyz(2.2081, 2.1219, 6.7704)
Luminance	0.0212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10284A #4A3210

analogous

#10454A #10284A #15104A

triadic

#10284A #4A1028 #284A10

tetradic

#10284A #4A1045 #4A3210 #104A15

square

#10284A #4A1045 #4A3210 #104A15

split-complementary

#10284A #4A1510 #454A10

monochromatic

#050E19 #050E19 #10284A #1B437C #265EAF

Accessibility & contrast

On white

14.74

#10284A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#10284A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10284A

14.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10284A	#FFFFFF	#000000	##FFFFFF
##10284A	1.00	14.74	1.42	14.74
#FFFFFF	14.74	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182B4B

Deuteranopia (green-blind)

#0E2649

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #10284a;
/* rgb */ color: rgb(16, 40, 74);
/* oklch */ color: oklch(27.8% 0.070 257.5);

Tailwind

colors: {
  custom: {
    50: '#57617d',
    500: '#10284a',
    950: '#000000',
  },
}

SCSS

$custom: #10284a;
$custom-light: #57617d;
$custom-dark: #000000;

JSON

{
  "hex": "#10284a",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 74
  },
  "hsl": {
    "h": 215.172,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.27801,
    "c": 0.06978,
    "h": 257.5
  },
  "luminance": 0.02122
}

Semantic roles & 50–950 ramp

primary

#10284A

secondary

#846232

accent

#A240E7

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030509

muted

#78797B

Preview Lab

Preview with #10284A

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

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