#171E7C#171E7C

#171E7C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.155 H 270.1°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#171E7C
RGB	rgb(23, 30, 124)
HSL	hsl(236, 69%, 29%)
HSV	hsv(236, 81%, 49%)
CMYK	cmyk(81.5%, 75.8%, 0%, 51.4%)
CIE-LAB	lab(18.21, 32.81, -53.41)
CIE-LCH	lch(18.21, 62.68, 301.56°)
OKLab	oklab(30.86% 0.0002 -0.1547)
OKLCH	oklch(30.86% 0.155 270.1)
XYZ	xyz(4.4545, 2.5654, 19.3253)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E7C #7C7517

analogous

#17517C #171E7C #43177C

triadic

#171E7C #7C171E #1E7C17

tetradic

#171E7C #7C1751 #7C7517 #177C43

square

#171E7C #7C1751 #7C7517 #177C43

split-complementary

#171E7C #7C4317 #517C17

monochromatic

#05061A #0D1248 #171E7C #212AB0 #3440D9

Accessibility & contrast

On white

13.88

#171E7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#171E7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E7C

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E7C	#FFFFFF	#000000	##FFFFFF
##171E7C	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317F

Deuteranopia (green-blind)

#00277A

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #171e7c;
/* rgb */ color: rgb(23, 30, 124);
/* oklch */ color: oklch(30.9% 0.155 270.1);

Tailwind

colors: {
  custom: {
    50: '#685ba3',
    500: '#171e7c',
    950: '#000000',
  },
}

SCSS

$custom: #171e7c;
$custom-light: #685ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#171e7c",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 124
  },
  "hsl": {
    "h": 235.842,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30861,
    "c": 0.15469,
    "h": 270.1
  },
  "luminance": 0.02566
}

Semantic roles & 50–950 ramp

primary

#171E7C

secondary

#B1A93E

accent

#DF3CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #171E7C

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

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