#17256F#17256F

#17256F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 30.7% C 0.128 H 268.9°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#17256F
RGB	rgb(23, 37, 111)
HSL	hsl(230, 66%, 26%)
HSV	hsv(230, 79%, 44%)
CMYK	cmyk(79.3%, 66.7%, 0%, 56.5%)
CIE-LAB	lab(18.60, 23.09, -44.43)
CIE-LCH	lch(18.60, 50.07, 297.46°)
OKLab	oklab(30.73% -0.0024 -0.1285)
OKLCH	oklch(30.73% 0.128 268.9)
XYZ	xyz(3.8832, 2.6526, 15.3432)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17256F #6F6117

analogous

#17516F #17256F #35176F

triadic

#17256F #6F1725 #256F17

tetradic

#17256F #6F1751 #6F6117 #176F35

square

#17256F #6F1751 #6F6117 #176F35

split-complementary

#17256F #6F3517 #516F17

monochromatic

#050819 #0C143C #17256F #2236A2 #2D47D3

Accessibility & contrast

On white

13.72

#17256F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#17256F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17256F

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17256F	#FFFFFF	#000000	##FFFFFF
##17256F	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003171

Deuteranopia (green-blind)

#00296E

Tritanopia (blue-blind)

#003846

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #17256f;
/* rgb */ color: rgb(23, 37, 111);
/* oklch */ color: oklch(30.7% 0.128 268.9);

Tailwind

colors: {
  custom: {
    50: '#645f99',
    500: '#17256f',
    950: '#000000',
  },
}

SCSS

$custom: #17256f;
$custom-light: #645f99;
$custom-dark: #000000;

JSON

{
  "hex": "#17256f",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 111
  },
  "hsl": {
    "h": 230.455,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3073,
    "c": 0.12849,
    "h": 268.9
  },
  "luminance": 0.02653
}

Semantic roles & 50–950 ramp

primary

#17256F

secondary

#A5943D

accent

#CE3FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #17256F

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

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