#102C5B#102C5B

#102C5B is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.2% C 0.091 H 260.2°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#102C5B
RGB	rgb(16, 44, 91)
HSL	hsl(218, 70%, 21%)
HSV	hsv(218, 82%, 36%)
CMYK	cmyk(82.4%, 51.6%, 0%, 64.3%)
CIE-LAB	lab(18.66, 8.67, -31.24)
CIE-LCH	lch(18.66, 32.42, 285.52°)
OKLab	oklab(30.15% -0.0156 -0.0897)
OKLCH	oklch(30.15% 0.091 260.2)
XYZ	xyz(3.0020, 2.6665, 10.2520)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102C5B #5B3F10

analogous

#10515B #102C5B #19105B

triadic

#102C5B #5B102C #2C5B10

tetradic

#102C5B #5B1051 #5B3F10 #105B19

square

#102C5B #5B1051 #5B3F10 #105B19

split-complementary

#102C5B #5B1910 #515B10

monochromatic

#050D1A #071327 #102C5B #19458F #225EC3

Accessibility & contrast

On white

13.70

#102C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#102C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102C5B

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102C5B	#FFFFFF	#000000	##FFFFFF
##102C5B	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12315D

Deuteranopia (green-blind)

#002A5A

Tritanopia (blue-blind)

#00373F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #102c5b;
/* rgb */ color: rgb(16, 44, 91);
/* oklch */ color: oklch(30.2% 0.091 260.2);

Tailwind

colors: {
  custom: {
    50: '#5b648a',
    500: '#102c5b',
    950: '#000000',
  },
}

SCSS

$custom: #102c5b;
$custom-light: #5b648a;
$custom-dark: #000000;

JSON

{
  "hex": "#102c5b",
  "rgb": {
    "r": 16,
    "g": 44,
    "b": 91
  },
  "hsl": {
    "h": 217.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30154,
    "c": 0.09106,
    "h": 260.2
  },
  "luminance": 0.02667
}

Semantic roles & 50–950 ramp

primary

#102C5B

secondary

#947033

accent

#AA3BED

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#04050B

muted

#79797C

Preview Lab

Preview with #102C5B

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

Preview Lab → · Contrast checker → · Palette generator →