#17257E#17257E

#17257E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.149 H 268.7°. Best body text is #FFFFFF at 13.11:1 contrast (WCAG AA passes).

Color values

HEX	#17257E
RGB	rgb(23, 37, 126)
HSL	hsl(232, 69%, 29%)
HSV	hsv(232, 82%, 49%)
CMYK	cmyk(81.7%, 70.6%, 0%, 50.6%)
CIE-LAB	lab(20.09, 29.00, -51.59)
CIE-LCH	lch(20.09, 59.18, 299.34°)
OKLab	oklab(32.28% -0.0034 -0.1494)
OKLCH	oklch(32.28% 0.149 268.7)
XYZ	xyz(4.7795, 3.0111, 20.0639)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17257E #7E7017

analogous

#17597E #17257E #3D177E

triadic

#17257E #7E1725 #257E17

tetradic

#17257E #7E1759 #7E7017 #177E3D

square

#17257E #7E1759 #7E7017 #177E3D

split-complementary

#17257E #7E3D17 #597E17

monochromatic

#05081A #0E164A #17257E #2034B2 #354CDA

Accessibility & contrast

On white

13.11

#17257E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#17257E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17257E

13.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17257E	#FFFFFF	#000000	##FFFFFF
##17257E	1.00	13.11	1.60	13.11
#FFFFFF	13.11	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003581

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #17257e;
/* rgb */ color: rgb(23, 37, 126);
/* oklch */ color: oklch(32.3% 0.149 268.7);

Tailwind

colors: {
  custom: {
    50: '#685fa4',
    500: '#17257e',
    950: '#000000',
  },
}

SCSS

$custom: #17257e;
$custom-light: #685fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#17257e",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 126
  },
  "hsl": {
    "h": 231.845,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32277,
    "c": 0.14944,
    "h": 268.7
  },
  "luminance": 0.03012
}

Semantic roles & 50–950 ramp

primary

#17257E

secondary

#B3A33E

accent

#D43CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17257E

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

Preview Lab → · Contrast checker → · Palette generator →