#102F5B#102F5B

#102F5B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 30.9% C 0.087 H 257.8°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX#102F5B
RGBrgb(16, 47, 91)
HSLhsl(215, 70%, 21%)
HSVhsv(215, 82%, 36%)
CMYKcmyk(82.4%, 48.4%, 0%, 64.3%)
CIE-LABlab(19.63, 6.47, -29.67)
CIE-LCHlch(19.63, 30.37, 282.31°)
OKLaboklab(30.91% -0.0184 -0.085)
OKLCHoklch(30.91% 0.087 257.8)
XYZxyz(3.1178, 2.8982, 10.2906)
Luminance0.0290 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#102F5B #5B3C10
analogous
#10545B #102F5B #16105B
triadic
#102F5B #5B102F #2F5B10
tetradic
#102F5B #5B1054 #5B3C10 #105B16
square
#102F5B #5B1054 #5B3C10 #105B16
split-complementary
#102F5B #5B1610 #545B10
monochromatic
#050D1A #071427 #102F5B #194A8F #2265C3

Accessibility & contrast

On white

13.29
#102F5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.58
#102F5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102F5B
13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##102F5B#FFFFFF#000000##FFFFFF
##102F5B1.0013.291.5813.29
#FFFFFF13.291.0021.001.00
#0000001.5821.001.0021.00
##FFFFFF13.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#18335D
Deuteranopia (green-blind)
#082C5A
Tritanopia (blue-blind)
#003940
Achromatopsia (no color)
#2F2F2F

Design tokens & code

CSS
--color: #102f5b;
/* rgb */ color: rgb(16, 47, 91);
/* oklch */ color: oklch(30.9% 0.087 257.8);
Tailwind
colors: {
  custom: {
    50: '#5b678a',
    500: '#102f5b',
    950: '#000000',
  },
}
SCSS
$custom: #102f5b;
$custom-light: #5b678a;
$custom-dark: #000000;
JSON
{
  "hex": "#102f5b",
  "rgb": {
    "r": 16,
    "g": 47,
    "b": 91
  },
  "hsl": {
    "h": 215.2,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30906,
    "c": 0.08701,
    "h": 257.8
  },
  "luminance": 0.02899
}

Semantic roles & 50–950 ramp

primary
#102F5B
secondary
#946C33
accent
#A33BED
background
#F5F6F8
surface
#E9EBF0
border
#C5C6CB
text
#04060B
muted
#797A7C

Preview Lab

Preview with #102F5B

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

Preview Lab → · Contrast checker → · Palette generator →

#102F5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva