#17103E#17103E

#17103E is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.6% C 0.084 H 283.8°. Best body text is #FFFFFF at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#17103E
RGB	rgb(23, 16, 62)
HSL	hsl(249, 59%, 15%)
HSV	hsv(249, 74%, 24%)
CMYK	cmyk(62.9%, 74.2%, 0%, 75.7%)
CIE-LAB	lab(8.13, 18.77, -28.33)
CIE-LCH	lch(8.13, 33.98, 303.53°)
OKLab	oklab(21.6% 0.02 -0.0814)
OKLCH	oklch(21.6% 0.084 283.8)
XYZ	xyz(1.4079, 0.9005, 4.6561)
Luminance	0.0090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 4.34

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17103E #373E10

analogous

#10203E #17103E #2E103E

triadic

#17103E #3E1710 #103E17

tetradic

#17103E #3E1020 #373E10 #103E2E

square

#17103E #3E1020 #373E10 #103E2E

split-complementary

#17103E #3E2E10 #203E10

monochromatic

#090618 #090618 #17103E #291D6F #3B299F

Accessibility & contrast

On white

17.79

#17103E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#17103E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17103E

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17103E	#FFFFFF	#000000	##FFFFFF
##17103E	1.00	17.79	1.18	17.79
#FFFFFF	17.79	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193F

Deuteranopia (green-blind)

#00163D

Tritanopia (blue-blind)

#061B25

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #17103e;
/* rgb */ color: rgb(23, 16, 62);
/* oklch */ color: oklch(21.6% 0.084 283.8);

Tailwind

colors: {
  custom: {
    50: '#594e74',
    500: '#17103e',
    950: '#000000',
  },
}

SCSS

$custom: #17103e;
$custom-light: #594e74;
$custom-dark: #000000;

JSON

{
  "hex": "#17103e",
  "rgb": {
    "r": 23,
    "g": 16,
    "b": 62
  },
  "hsl": {
    "h": 249.13,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.216,
    "c": 0.08382,
    "h": 283.8
  },
  "luminance": 0.00901
}

Semantic roles & 50–950 ramp

primary

#17103E

secondary

#6D7832

accent

#E246CA

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #17103E

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

Preview Lab → · Contrast checker → · Palette generator →