#170E4D#170E4D

#170E4D is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.9% C 0.109 H 280.0°. Best body text is #FFFFFF at 17.41:1 contrast (WCAG AA passes).

Color values

HEX	#170E4D
RGB	rgb(23, 14, 77)
HSL	hsl(249, 69%, 18%)
HSV	hsv(249, 82%, 30%)
CMYK	cmyk(70.1%, 81.8%, 0%, 69.8%)
CIE-LAB	lab(9.25, 25.63, -37.04)
CIE-LCH	lch(9.25, 45.04, 304.68°)
OKLab	oklab(22.89% 0.0188 -0.1069)
OKLCH	oklch(22.89% 0.109 280)
XYZ	xyz(1.8495, 1.0319, 7.1215)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E4D #444D0E

analogous

#0E254D #170E4D #360E4D

triadic

#170E4D #4D170E #0E4D17

tetradic

#170E4D #4D0E25 #444D0E #0E4D36

square

#170E4D #4D0E25 #444D0E #0E4D36

split-complementary

#170E4D #4D360E #254D0E

monochromatic

#08051A #08051A #170E4D #261781 #3621B5

Accessibility & contrast

On white

17.41

#170E4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#170E4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E4D

17.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E4D	#FFFFFF	#000000	##FFFFFF
##170E4D	1.00	17.41	1.21	17.41
#FFFFFF	17.41	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C4F

Deuteranopia (green-blind)

#00184C

Tritanopia (blue-blind)

#00202C

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #170e4d;
/* rgb */ color: rgb(23, 14, 77);
/* oklch */ color: oklch(22.9% 0.109 280.0);

Tailwind

colors: {
  custom: {
    50: '#5d4e80',
    500: '#170e4d',
    950: '#000000',
  },
}

SCSS

$custom: #170e4d;
$custom-light: #5d4e80;
$custom-dark: #000000;

JSON

{
  "hex": "#170e4d",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 77
  },
  "hsl": {
    "h": 248.571,
    "s": 69.231,
    "l": 17.843
  },
  "oklch": {
    "l": 0.22893,
    "c": 0.10853,
    "h": 280
  },
  "luminance": 0.01032
}

Semantic roles & 50–950 ramp

primary

#170E4D

secondary

#7B882F

accent

#EC3CD3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #170E4D

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

Preview Lab → · Contrast checker → · Palette generator →