#10284C#10284C

#10284C is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.0% C 0.073 H 258.5°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#10284C
RGB	rgb(16, 40, 76)
HSL	hsl(216, 65%, 18%)
HSV	hsv(216, 79%, 30%)
CMYK	cmyk(78.9%, 47.4%, 0%, 70.2%)
CIE-LAB	lab(16.25, 5.11, -25.01)
CIE-LCH	lch(16.25, 25.53, 281.55°)
OKLab	oklab(27.95% -0.0146 -0.0715)
OKLCH	oklch(27.95% 0.073 258.5)
XYZ	xyz(2.2765, 2.1493, 7.1310)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10284C #4C3410

analogous

#10464C #10284C #16104C

triadic

#10284C #4C1028 #284C10

tetradic

#10284C #4C1046 #4C3410 #104C16

square

#10284C #4C1046 #4C3410 #104C16

split-complementary

#10284C #4C1610 #464C10

monochromatic

#050D19 #050D19 #10284C #1B437F #255DB1

Accessibility & contrast

On white

14.69

#10284C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#10284C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10284C

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10284C	#FFFFFF	#000000	##FFFFFF
##10284C	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4D

Deuteranopia (green-blind)

#0C264B

Tritanopia (blue-blind)

#003036

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #10284c;
/* rgb */ color: rgb(16, 40, 76);
/* oklch */ color: oklch(28.0% 0.073 258.5);

Tailwind

colors: {
  custom: {
    50: '#57617e',
    500: '#10284c',
    950: '#000000',
  },
}

SCSS

$custom: #10284c;
$custom-light: #57617e;
$custom-dark: #000000;

JSON

{
  "hex": "#10284c",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 76
  },
  "hsl": {
    "h": 216,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.27952,
    "c": 0.07298,
    "h": 258.5
  },
  "luminance": 0.0215
}

Semantic roles & 50–950 ramp

primary

#10284C

secondary

#866432

accent

#A540E8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #10284C

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

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