#170D50#170D50

#170D50 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 23.1% C 0.114 H 279.4°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#170D50
RGB	rgb(23, 13, 80)
HSL	hsl(249, 72%, 18%)
HSV	hsv(249, 84%, 31%)
CMYK	cmyk(71.2%, 83.7%, 0%, 68.6%)
CIE-LAB	lab(9.39, 27.30, -38.88)
CIE-LCH	lch(9.39, 47.51, 305.08°)
OKLab	oklab(23.1% 0.0187 -0.1123)
OKLCH	oklch(23.1% 0.114 279.4)
XYZ	xyz(1.9448, 1.0490, 7.6879)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170D50 #46500D

analogous

#0D2450 #170D50 #380D50

triadic

#170D50 #50170D #0D5017

tetradic

#170D50 #500D24 #46500D #0D5038

square

#170D50 #500D24 #46500D #0D5038

split-complementary

#170D50 #50380D #24500D

monochromatic

#08041A #08041B #170D50 #261685 #351EB9

Accessibility & contrast

On white

17.36

#170D50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#170D50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170D50

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170D50	#FFFFFF	#000000	##FFFFFF
##170D50	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D52

Deuteranopia (green-blind)

#00184F

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #170d50;
/* rgb */ color: rgb(23, 13, 80);
/* oklch */ color: oklch(23.1% 0.114 279.4);

Tailwind

colors: {
  custom: {
    50: '#5e4d82',
    500: '#170d50',
    950: '#000000',
  },
}

SCSS

$custom: #170d50;
$custom-light: #5e4d82;
$custom-dark: #000000;

JSON

{
  "hex": "#170d50",
  "rgb": {
    "r": 23,
    "g": 13,
    "b": 80
  },
  "hsl": {
    "h": 248.955,
    "s": 72.043,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23096,
    "c": 0.1138,
    "h": 279.4
  },
  "luminance": 0.01049
}

Semantic roles & 50–950 ramp

primary

#170D50

secondary

#7D8B2E

accent

#EF39D4

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010A

muted

#79777C

Preview Lab

Preview with #170D50

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

Preview Lab → · Contrast checker → · Palette generator →