#10247E#10247E

#10247E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.8% C 0.152 H 266.6°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#10247E
RGB	rgb(16, 36, 126)
HSL	hsl(229, 77%, 28%)
HSV	hsv(229, 87%, 49%)
CMYK	cmyk(87.3%, 71.4%, 0%, 50.6%)
CIE-LAB	lab(19.55, 29.11, -52.49)
CIE-LCH	lch(19.55, 60.02, 299.01°)
OKLab	oklab(31.8% -0.0091 -0.1521)
OKLCH	oklch(31.8% 0.152 266.6)
XYZ	xyz(4.6091, 2.8777, 20.0471)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10247E #7E6A10

analogous

#105B7E #10247E #33107E

triadic

#10247E #7E1024 #247E10

tetradic

#10247E #7E105B #7E6A10 #107E33

square

#10247E #7E105B #7E6A10 #107E33

split-complementary

#10247E #7E3310 #5B7E10

monochromatic

#03081B #091448 #10247E #1734B4 #2548E3

Accessibility & contrast

On white

13.33

#10247E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#10247E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10247E

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10247E	#FFFFFF	#000000	##FFFFFF
##10247E	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003581

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #10247e;
/* rgb */ color: rgb(16, 36, 126);
/* oklch */ color: oklch(31.8% 0.152 266.6);

Tailwind

colors: {
  custom: {
    50: '#665fa4',
    500: '#10247e',
    950: '#000000',
  },
}

SCSS

$custom: #10247e;
$custom-light: #665fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#10247e",
  "rgb": {
    "r": 16,
    "g": 36,
    "b": 126
  },
  "hsl": {
    "h": 229.091,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31803,
    "c": 0.15242,
    "h": 266.6
  },
  "luminance": 0.02878
}

Semantic roles & 50–950 ramp

primary

#10247E

secondary

#B49D36

accent

#D134F4

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #10247E

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

Preview Lab → · Contrast checker → · Palette generator →