#17357D#17357D

#17357D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.4% C 0.128 H 263.9°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#17357D
RGB	rgb(23, 53, 125)
HSL	hsl(222, 69%, 29%)
HSV	hsv(222, 82%, 49%)
CMYK	cmyk(81.6%, 57.6%, 0%, 51%)
CIE-LAB	lab(24.35, 17.43, -43.99)
CIE-LCH	lch(24.35, 47.31, 291.61°)
OKLab	oklab(35.41% -0.0135 -0.1269)
OKLCH	oklch(35.41% 0.128 263.9)
XYZ	xyz(5.3268, 4.2084, 19.9296)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17357D #7D5F17

analogous

#17687D #17357D #2C177D

triadic

#17357D #7D1735 #357D17

tetradic

#17357D #7D1768 #7D5F17 #177D2C

square

#17357D #7D1768 #7D5F17 #177D2C

split-complementary

#17357D #7D2C17 #687D17

monochromatic

#050B1A #0D1F49 #17357D #214BB1 #3565DA

Accessibility & contrast

On white

11.40

#17357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#17357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17357D

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17357D	#FFFFFF	#000000	##FFFFFF
##17357D	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #17357d;
/* rgb */ color: rgb(23, 53, 125);
/* oklch */ color: oklch(35.4% 0.128 263.9);

Tailwind

colors: {
  custom: {
    50: '#666ba3',
    500: '#17357d',
    950: '#000000',
  },
}

SCSS

$custom: #17357d;
$custom-light: #666ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#17357d",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 222.353,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35408,
    "c": 0.12766,
    "h": 263.9
  },
  "luminance": 0.04209
}

Semantic roles & 50–950 ramp

primary

#17357D

secondary

#B2903E

accent

#B83CEC

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #17357D

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

Preview Lab → · Contrast checker → · Palette generator →