#17438B#17438B

#17438B is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.7% C 0.129 H 259.9°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX#17438B
RGBrgb(23, 67, 139)
HSLhsl(217, 72%, 32%)
HSVhsv(217, 83%, 55%)
CMYKcmyk(83.5%, 51.8%, 0%, 45.5%)
CIE-LABlab(29.56, 13.38, -44.27)
CIE-LCHlch(29.56, 46.25, 286.82°)
OKLaboklab(39.71% -0.0226 -0.1275)
OKLCHoklch(39.71% 0.129 259.9)
XYZxyz(7.0190, 6.0597, 25.2208)
Luminance0.0606 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17438B #8B5F17
analogous
#177D8B #17438B #25178B
triadic
#17438B #8B1743 #438B17
tetradic
#17438B #8B177D #8B5F17 #178B25
square
#17438B #8B177D #8B5F17 #178B25
split-complementary
#17438B #8B2517 #7D8B17
monochromatic
#061022 #0E2A56 #17438B #205CC0 #3D7BDF

Accessibility & contrast

On white

9.49
#17438B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.21
#17438B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17438B
9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17438B#FFFFFF#000000##FFFFFF
##17438B1.009.492.219.49
#FFFFFF9.491.0021.001.00
#0000002.2121.001.0021.00
##FFFFFF9.491.0021.001.00

Color blindness preview

Protanopia (red-blind)
#154B8E
Deuteranopia (green-blind)
#00418A
Tritanopia (blue-blind)
#005460
Achromatopsia (no color)
#464646

Design tokens & code

CSS
--color: #17438b;
/* rgb */ color: rgb(23, 67, 139);
/* oklch */ color: oklch(39.7% 0.129 259.9);
Tailwind
colors: {
  custom: {
    50: '#6976ad',
    500: '#17438b',
    950: '#000000',
  },
}
SCSS
$custom: #17438b;
$custom-light: #6976ad;
$custom-dark: #000000;
JSON
{
  "hex": "#17438b",
  "rgb": {
    "r": 23,
    "g": 67,
    "b": 139
  },
  "hsl": {
    "h": 217.241,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39714,
    "c": 0.12947,
    "h": 259.9
  },
  "luminance": 0.06061
}

Semantic roles & 50–950 ramp

primary
#17438B
secondary
#BF8E3F
accent
#AA39EE
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#070810
muted
#7A7B7F

Preview Lab

Preview with #17438B

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

Preview Lab → · Contrast checker → · Palette generator →

#17438B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva