#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
RGB	rgb(23, 67, 139)
HSL	hsl(217, 72%, 32%)
HSV	hsv(217, 83%, 55%)
CMYK	cmyk(83.5%, 51.8%, 0%, 45.5%)
CIE-LAB	lab(29.56, 13.38, -44.27)
CIE-LCH	lch(29.56, 46.25, 286.82°)
OKLab	oklab(39.71% -0.0226 -0.1275)
OKLCH	oklch(39.71% 0.129 259.9)
XYZ	xyz(7.0190, 6.0597, 25.2208)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

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
##17438B	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

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 →