#171E5F#171E5F

#171E5F is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.7% C 0.114 H 271.8°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#171E5F
RGB	rgb(23, 30, 95)
HSL	hsl(234, 61%, 23%)
HSV	hsv(234, 76%, 37%)
CMYK	cmyk(75.8%, 68.4%, 0%, 62.7%)
CIE-LAB	lab(15.15, 21.65, -39.57)
CIE-LCH	lch(15.15, 45.11, 298.69°)
OKLab	oklab(27.72% 0.0036 -0.1143)
OKLCH	oklch(27.72% 0.114 271.8)
XYZ	xyz(2.8825, 1.9366, 11.0462)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E5F #5F5817

analogous

#17425F #171E5F #34175F

triadic

#171E5F #5F171E #1E5F17

tetradic

#171E5F #5F1742 #5F5817 #175F34

square

#171E5F #5F1742 #5F5817 #175F34

split-complementary

#171E5F #5F3417 #425F17

monochromatic

#060819 #0B0E2E #171E5F #232E90 #2F3DC2

Accessibility & contrast

On white

15.14

#171E5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#171E5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E5F

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E5F	#FFFFFF	#000000	##FFFFFF
##171E5F	1.00	15.14	1.39	15.14
#FFFFFF	15.14	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002961

Deuteranopia (green-blind)

#00235E

Tritanopia (blue-blind)

#002F3B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171e5f;
/* rgb */ color: rgb(23, 30, 95);
/* oklch */ color: oklch(27.7% 0.114 271.8);

Tailwind

colors: {
  custom: {
    50: '#60598d',
    500: '#171e5f',
    950: '#000000',
  },
}

SCSS

$custom: #171e5f;
$custom-light: #60598d;
$custom-dark: #000000;

JSON

{
  "hex": "#171e5f",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 95
  },
  "hsl": {
    "h": 234.167,
    "s": 61.017,
    "l": 23.137
  },
  "oklch": {
    "l": 0.27723,
    "c": 0.11435,
    "h": 271.8
  },
  "luminance": 0.01937
}

Semantic roles & 50–950 ramp

primary

#171E5F

secondary

#968D3C

accent

#D544E4

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171E5F

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

Preview Lab → · Contrast checker → · Palette generator →