#17357F#17357F

#17357F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.6% C 0.131 H 264.1°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#17357F
RGB	rgb(23, 53, 127)
HSL	hsl(223, 69%, 29%)
HSV	hsv(223, 82%, 50%)
CMYK	cmyk(81.9%, 58.3%, 0%, 50.2%)
CIE-LAB	lab(24.51, 18.25, -44.98)
CIE-LCH	lch(24.51, 48.54, 292.08°)
OKLab	oklab(35.58% -0.0134 -0.1299)
OKLCH	oklch(35.58% 0.131 264.1)
XYZ	xyz(5.4559, 4.2600, 20.6093)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17357F #7F6117

analogous

#17697F #17357F #2D177F

triadic

#17357F #7F1735 #357F17

tetradic

#17357F #7F1769 #7F6117 #177F2D

square

#17357F #7F1769 #7F6117 #177F2D

split-complementary

#17357F #7F2D17 #697F17

monochromatic

#050B1A #0E1F4B #17357F #204BB3 #3665DB

Accessibility & contrast

On white

11.34

#17357F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#17357F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17357F

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17357F	#FFFFFF	#000000	##FFFFFF
##17357F	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00367E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #17357f;
/* rgb */ color: rgb(23, 53, 127);
/* oklch */ color: oklch(35.6% 0.131 264.1);

Tailwind

colors: {
  custom: {
    50: '#676ba5',
    500: '#17357f',
    950: '#000000',
  },
}

SCSS

$custom: #17357f;
$custom-light: #676ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#17357f",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 127
  },
  "hsl": {
    "h": 222.692,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35583,
    "c": 0.13055,
    "h": 264.1
  },
  "luminance": 0.04261
}

Semantic roles & 50–950 ramp

primary

#17357F

secondary

#B4923E

accent

#B93CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17357F

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

Preview Lab → · Contrast checker → · Palette generator →