#17237D#17237D

#17237D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.8% C 0.150 H 269.1°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#17237D
RGB	rgb(23, 35, 125)
HSL	hsl(233, 69%, 29%)
HSV	hsv(233, 82%, 49%)
CMYK	cmyk(81.6%, 72%, 0%, 51%)
CIE-LAB	lab(19.49, 29.95, -51.93)
CIE-LCH	lch(19.49, 59.95, 299.97°)
OKLab	oklab(31.81% -0.0022 -0.1504)
OKLCH	oklch(31.81% 0.15 269.1)
XYZ	xyz(4.6548, 2.8644, 19.7056)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17237D #7D7117

analogous

#17567D #17237D #3E177D

triadic

#17237D #7D1723 #237D17

tetradic

#17237D #7D1756 #7D7117 #177D3E

square

#17237D #7D1756 #7D7117 #177D3E

split-complementary

#17237D #7D3E17 #567D17

monochromatic

#05071A #0D1549 #17237D #2131B1 #3548DA

Accessibility & contrast

On white

13.35

#17237D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17237D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17237D

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17237D	#FFFFFF	#000000	##FFFFFF
##17237D	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003480

Deuteranopia (green-blind)

#002A7B

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17237d;
/* rgb */ color: rgb(23, 35, 125);
/* oklch */ color: oklch(31.8% 0.150 269.1);

Tailwind

colors: {
  custom: {
    50: '#685ea4',
    500: '#17237d',
    950: '#000000',
  },
}

SCSS

$custom: #17237d;
$custom-light: #685ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#17237d",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 125
  },
  "hsl": {
    "h": 232.941,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31814,
    "c": 0.15043,
    "h": 269.1
  },
  "luminance": 0.02865
}

Semantic roles & 50–950 ramp

primary

#17237D

secondary

#B2A43E

accent

#D73CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17237D

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

Preview Lab → · Contrast checker → · Palette generator →