#17257F#17257F

#17257F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.4% C 0.151 H 268.7°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#17257F
RGB	rgb(23, 37, 127)
HSL	hsl(232, 69%, 29%)
HSV	hsv(232, 82%, 50%)
CMYK	cmyk(81.9%, 70.9%, 0%, 50.2%)
CIE-LAB	lab(20.19, 29.39, -52.05)
CIE-LCH	lch(20.19, 59.77, 299.45°)
OKLab	oklab(32.38% -0.0034 -0.1507)
OKLCH	oklch(32.38% 0.151 268.7)
XYZ	xyz(4.8444, 3.0370, 20.4054)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17257F #7F7117

analogous

#17597F #17257F #3D177F

triadic

#17257F #7F1725 #257F17

tetradic

#17257F #7F1759 #7F7117 #177F3D

square

#17257F #7F1759 #7F7117 #177F3D

split-complementary

#17257F #7F3D17 #597F17

monochromatic

#05081A #0E164B #17257F #2034B3 #364CDB

Accessibility & contrast

On white

13.06

#17257F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#17257F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17257F

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17257F	#FFFFFF	#000000	##FFFFFF
##17257F	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003682

Deuteranopia (green-blind)

#002C7D

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #17257f;
/* rgb */ color: rgb(23, 37, 127);
/* oklch */ color: oklch(32.4% 0.151 268.7);

Tailwind

colors: {
  custom: {
    50: '#685fa5',
    500: '#17257f',
    950: '#000000',
  },
}

SCSS

$custom: #17257f;
$custom-light: #685fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#17257f",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 127
  },
  "hsl": {
    "h": 231.923,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32384,
    "c": 0.15079,
    "h": 268.7
  },
  "luminance": 0.03038
}

Semantic roles & 50–950 ramp

primary

#17257F

secondary

#B4A43E

accent

#D43CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17257F

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

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