#102B58#102B58

#102B58 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.7% C 0.088 H 260.1°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#102B58
RGB	rgb(16, 43, 88)
HSL	hsl(218, 69%, 20%)
HSV	hsv(218, 82%, 35%)
CMYK	cmyk(81.8%, 51.1%, 0%, 65.5%)
CIE-LAB	lab(18.11, 8.11, -30.12)
CIE-LCH	lch(18.11, 31.19, 285.06°)
OKLab	oklab(29.66% -0.0152 -0.0865)
OKLCH	oklch(29.66% 0.088 260.1)
XYZ	xyz(2.8384, 2.5422, 9.5717)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B58 #583D10

analogous

#104F58 #102B58 #191058

triadic

#102B58 #58102B #2B5810

tetradic

#102B58 #58104F #583D10 #105819

square

#102B58 #58104F #583D10 #105819

split-complementary

#102B58 #581910 #4F5810

monochromatic

#050D1A #071224 #102B58 #19448C #235EC0

Accessibility & contrast

On white

13.92

#102B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#102B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B58

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B58	#FFFFFF	#000000	##FFFFFF
##102B58	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12305A

Deuteranopia (green-blind)

#012957

Tritanopia (blue-blind)

#00363D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102b58;
/* rgb */ color: rgb(16, 43, 88);
/* oklch */ color: oklch(29.7% 0.088 260.1);

Tailwind

colors: {
  custom: {
    50: '#5a6387',
    500: '#102b58',
    950: '#000000',
  },
}

SCSS

$custom: #102b58;
$custom-light: #5a6387;
$custom-dark: #000000;

JSON

{
  "hex": "#102b58",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 88
  },
  "hsl": {
    "h": 217.5,
    "s": 69.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.29662,
    "c": 0.08778,
    "h": 260.1
  },
  "luminance": 0.02542
}

Semantic roles & 50–950 ramp

primary

#102B58

secondary

#916E32

accent

#AA3CEC

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #102B58

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

Preview Lab → · Contrast checker → · Palette generator →