#10245B#10245B

#10245B is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.2% C 0.102 H 265.2°. Best body text is #FFFFFF at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#10245B
RGB	rgb(16, 36, 91)
HSL	hsl(224, 70%, 21%)
HSV	hsv(224, 82%, 36%)
CMYK	cmyk(82.4%, 60.4%, 0%, 64.3%)
CIE-LAB	lab(16.14, 14.63, -35.31)
CIE-LCH	lch(16.14, 38.22, 292.51°)
OKLab	oklab(28.24% -0.0086 -0.1019)
OKLCH	oklch(28.24% 0.102 265.2)
XYZ	xyz(2.7322, 2.1269, 10.1620)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10245B #5B4710

analogous

#10495B #10245B #21105B

triadic

#10245B #5B1024 #245B10

tetradic

#10245B #5B1049 #5B4710 #105B21

square

#10245B #5B1049 #5B4710 #105B21

split-complementary

#10245B #5B2110 #495B10

monochromatic

#050A1A #070F27 #10245B #19398F #224DC3

Accessibility & contrast

On white

14.73

#10245B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#10245B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10245B

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10245B	#FFFFFF	#000000	##FFFFFF
##10245B	1.00	14.73	1.43	14.73
#FFFFFF	14.73	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5D

Deuteranopia (green-blind)

#00255A

Tritanopia (blue-blind)

#00323B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #10245b;
/* rgb */ color: rgb(16, 36, 91);
/* oklch */ color: oklch(28.2% 0.102 265.2);

Tailwind

colors: {
  custom: {
    50: '#5c5e8a',
    500: '#10245b',
    950: '#000000',
  },
}

SCSS

$custom: #10245b;
$custom-light: #5c5e8a;
$custom-dark: #000000;

JSON

{
  "hex": "#10245b",
  "rgb": {
    "r": 16,
    "g": 36,
    "b": 91
  },
  "hsl": {
    "h": 224,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28241,
    "c": 0.10222,
    "h": 265.2
  },
  "luminance": 0.02127
}

Semantic roles & 50–950 ramp

primary

#10245B

secondary

#947A33

accent

#BD3BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #10245B

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

Preview Lab → · Contrast checker → · Palette generator →