#102B5A#102B5A

#102B5A is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.8% C 0.091 H 260.6°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#102B5A
RGB	rgb(16, 43, 90)
HSL	hsl(218, 70%, 21%)
HSV	hsv(218, 82%, 35%)
CMYK	cmyk(82.2%, 52.2%, 0%, 64.7%)
CIE-LAB	lab(18.26, 8.98, -31.21)
CIE-LCH	lch(18.26, 32.48, 286.05°)
OKLab	oklab(29.83% -0.0148 -0.0897)
OKLCH	oklch(29.83% 0.091 260.6)
XYZ	xyz(2.9224, 2.5758, 10.0140)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B5A #5A3F10

analogous

#10505A #102B5A #1A105A

triadic

#102B5A #5A102B #2B5A10

tetradic

#102B5A #5A1050 #5A3F10 #105A1A

square

#102B5A #5A1050 #5A3F10 #105A1A

split-complementary

#102B5A #5A1A10 #505A10

monochromatic

#050C1A #071226 #102B5A #19448E #225DC2

Accessibility & contrast

On white

13.86

#102B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#102B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B5A

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B5A	#FFFFFF	#000000	##FFFFFF
##102B5A	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10305C

Deuteranopia (green-blind)

#002959

Tritanopia (blue-blind)

#00363E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #102b5a;
/* rgb */ color: rgb(16, 43, 90);
/* oklch */ color: oklch(29.8% 0.091 260.6);

Tailwind

colors: {
  custom: {
    50: '#5b6389',
    500: '#102b5a',
    950: '#000000',
  },
}

SCSS

$custom: #102b5a;
$custom-light: #5b6389;
$custom-dark: #000000;

JSON

{
  "hex": "#102b5a",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 90
  },
  "hsl": {
    "h": 218.108,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.29825,
    "c": 0.09089,
    "h": 260.6
  },
  "luminance": 0.02576
}

Semantic roles & 50–950 ramp

primary

#102B5A

secondary

#937033

accent

#AC3BED

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#04050B

muted

#79797C

Preview Lab

Preview with #102B5A

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

Preview Lab → · Contrast checker → · Palette generator →