#10284E#10284E

#10284E is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.1% C 0.076 H 259.3°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#10284E
RGB	rgb(16, 40, 78)
HSL	hsl(217, 66%, 18%)
HSV	hsv(217, 79%, 31%)
CMYK	cmyk(79.5%, 48.7%, 0%, 69.4%)
CIE-LAB	lab(16.39, 5.98, -26.15)
CIE-LCH	lch(16.39, 26.82, 282.88°)
OKLab	oklab(28.11% -0.0142 -0.0748)
OKLCH	oklch(28.11% 0.076 259.3)
XYZ	xyz(2.3471, 2.1775, 7.5029)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10284E #4E3610

analogous

#10474E #10284E #17104E

triadic

#10284E #4E1028 #284E10

tetradic

#10284E #4E1047 #4E3610 #104E17

square

#10284E #4E1047 #4E3610 #104E17

split-complementary

#10284E #4E1710 #474E10

monochromatic

#050D19 #060E1B #10284E #1A4281 #255CB4

Accessibility & contrast

On white

14.63

#10284E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#10284E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10284E

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10284E	#FFFFFF	#000000	##FFFFFF
##10284E	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152C4F

Deuteranopia (green-blind)

#09264D

Tritanopia (blue-blind)

#003137

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #10284e;
/* rgb */ color: rgb(16, 40, 78);
/* oklch */ color: oklch(28.1% 0.076 259.3);

Tailwind

colors: {
  custom: {
    50: '#586180',
    500: '#10284e',
    950: '#000000',
  },
}

SCSS

$custom: #10284e;
$custom-light: #586180;
$custom-dark: #000000;

JSON

{
  "hex": "#10284e",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 78
  },
  "hsl": {
    "h": 216.774,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.28107,
    "c": 0.07616,
    "h": 259.3
  },
  "luminance": 0.02178
}

Semantic roles & 50–950 ramp

primary

#10284E

secondary

#886732

accent

#A73FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #10284E

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

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