#10398D#10398D

#10398D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.147 H 262.3°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX#10398D
RGBrgb(16, 57, 141)
HSLhsl(220, 80%, 31%)
HSVhsv(220, 89%, 55%)
CMYKcmyk(88.7%, 59.6%, 0%, 44.7%)
CIE-LABlab(26.62, 20.60, -50.30)
CIE-LCHlch(26.62, 54.35, 292.27°)
OKLaboklab(37.47% -0.0196 -0.1455)
OKLCHoklch(37.47% 0.147 262.3)
XYZxyz(6.4828, 4.9587, 25.8096)
Luminance0.0496 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#10398D #8D6410
analogous
#10778D #10398D #25108D
triadic
#10398D #8D1039 #398D10
tetradic
#10398D #8D1077 #8D6410 #108D25
square
#10398D #8D1077 #8D6410 #108D25
split-complementary
#10398D #8D2510 #778D10
monochromatic
#040D1F #0A2356 #10398D #164FC4 #306CE7

Accessibility & contrast

On white

10.54
#10398D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.99
#10398D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10398D
10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##10398D#FFFFFF#000000##FFFFFF
##10398D1.0010.541.9910.54
#FFFFFF10.541.0021.001.00
#0000001.9921.001.0021.00
##FFFFFF10.541.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004590
Deuteranopia (green-blind)
#00398B
Tritanopia (blue-blind)
#004E5D
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #10398d;
/* rgb */ color: rgb(16, 57, 141);
/* oklch */ color: oklch(37.5% 0.147 262.3);
Tailwind
colors: {
  custom: {
    50: '#696eaf',
    500: '#10398d',
    950: '#000000',
  },
}
SCSS
$custom: #10398d;
$custom-light: #696eaf;
$custom-dark: #000000;
JSON
{
  "hex": "#10398d",
  "rgb": {
    "r": 16,
    "g": 57,
    "b": 141
  },
  "hsl": {
    "h": 220.32,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37473,
    "c": 0.14682,
    "h": 262.3
  },
  "luminance": 0.0496
}

Semantic roles & 50–950 ramp

primary
#10398D
secondary
#C29437
accent
#B632F6
background
#F6F6FA
surface
#ECEBF5
border
#C7C6CF
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #10398D

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

Preview Lab → · Contrast checker → · Palette generator →

#10398D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva