#102F5A#102F5A

#102F5A is a dark, moderate cyan. Relative luminance 0.029; OKLCH L 30.8% C 0.085 H 257.4°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX#102F5A
RGBrgb(16, 47, 90)
HSLhsl(215, 70%, 21%)
HSVhsv(215, 82%, 35%)
CMYKcmyk(82.2%, 47.8%, 0%, 64.7%)
CIE-LABlab(19.56, 6.04, -29.12)
CIE-LCHlch(19.56, 29.74, 281.72°)
OKLaboklab(30.83% -0.0186 -0.0834)
OKLCHoklch(30.83% 0.085 257.4)
XYZxyz(3.0750, 2.8810, 10.0649)
Luminance0.0288 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#102F5A #5A3B10
analogous
#10545A #102F5A #16105A
triadic
#102F5A #5A102F #2F5A10
tetradic
#102F5A #5A1054 #5A3B10 #105A16
square
#102F5A #5A1054 #5A3B10 #105A16
split-complementary
#102F5A #5A1610 #545A10
monochromatic
#050E1A #071426 #102F5A #194A8E #2265C2

Accessibility & contrast

On white

13.32
#102F5A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.58
#102F5A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102F5A
13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##102F5A#FFFFFF#000000##FFFFFF
##102F5A1.0013.321.5813.32
#FFFFFF13.321.0021.001.00
#0000001.5821.001.0021.00
##FFFFFF13.321.0021.001.00

Color blindness preview

Protanopia (red-blind)
#19335C
Deuteranopia (green-blind)
#0A2C59
Tritanopia (blue-blind)
#003940
Achromatopsia (no color)
#2F2F2F

Design tokens & code

CSS
--color: #102f5a;
/* rgb */ color: rgb(16, 47, 90);
/* oklch */ color: oklch(30.8% 0.085 257.4);
Tailwind
colors: {
  custom: {
    50: '#5b6789',
    500: '#102f5a',
    950: '#000000',
  },
}
SCSS
$custom: #102f5a;
$custom-light: #5b6789;
$custom-dark: #000000;
JSON
{
  "hex": "#102f5a",
  "rgb": {
    "r": 16,
    "g": 47,
    "b": 90
  },
  "hsl": {
    "h": 214.865,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30828,
    "c": 0.08548,
    "h": 257.4
  },
  "luminance": 0.02881
}

Semantic roles & 50–950 ramp

primary
#102F5A
secondary
#936B33
accent
#A23BED
background
#F5F6F8
surface
#E9EBF0
border
#C5C6CB
text
#04060B
muted
#797A7C

Preview Lab

Preview with #102F5A

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

Preview Lab → · Contrast checker → · Palette generator →

#102F5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva