#10307A#10307A

#10307A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.8% C 0.132 H 263.3°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX#10307A
RGBrgb(16, 48, 122)
HSLhsl(222, 77%, 27%)
HSVhsv(222, 87%, 48%)
CMYKcmyk(86.9%, 60.7%, 0%, 52.2%)
CIE-LABlab(22.40, 19.05, -45.27)
CIE-LCHlch(22.40, 49.11, 292.83°)
OKLaboklab(33.8% -0.0153 -0.1309)
OKLCHoklch(33.8% 0.132 263.3)
XYZxyz(4.7822, 3.6286, 18.8569)
Luminance0.0363 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#10307A #7A5A10
analogous
#10657A #10307A #25107A
triadic
#10307A #7A1030 #307A10
tetradic
#10307A #7A1065 #7A5A10 #107A25
square
#10307A #7A1065 #7A5A10 #107A25
split-complementary
#10307A #7A2510 #657A10
monochromatic
#040B1B #091B44 #10307A #1745B0 #225CE2

Accessibility & contrast

On white

12.17
#10307A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.73
#10307A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10307A
12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##10307A#FFFFFF#000000##FFFFFF
##10307A1.0012.171.7312.17
#FFFFFF12.171.0021.001.00
#0000001.7321.001.0021.00
##FFFFFF12.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003B7C
Deuteranopia (green-blind)
#003179
Tritanopia (blue-blind)
#004350
Achromatopsia (no color)
#363636

Design tokens & code

CSS
--color: #10307a;
/* rgb */ color: rgb(16, 48, 122);
/* oklch */ color: oklch(33.8% 0.132 263.3);
Tailwind
colors: {
  custom: {
    50: '#6467a1',
    500: '#10307a',
    950: '#000000',
  },
}
SCSS
$custom: #10307a;
$custom-light: #6467a1;
$custom-dark: #000000;
JSON
{
  "hex": "#10307a",
  "rgb": {
    "r": 16,
    "g": 48,
    "b": 122
  },
  "hsl": {
    "h": 221.887,
    "s": 76.812,
    "l": 27.059
  },
  "oklch": {
    "l": 0.33796,
    "c": 0.13179,
    "h": 263.3
  },
  "luminance": 0.03629
}

Semantic roles & 50–950 ramp

primary
#10307A
secondary
#B18B35
accent
#BA34F3
background
#F6F6FA
surface
#EBEBF3
border
#C6C6CD
text
#06060F
muted
#7A7A7F

Preview Lab

Preview with #10307A

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

Preview Lab → · Contrast checker → · Palette generator →

#10307A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva