#1D175D#1D175D

#1D175D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.119 H 278.5°. Best body text is #FFFFFF at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D175D
RGB	rgb(29, 23, 93)
HSL	hsl(245, 60%, 23%)
HSV	hsv(245, 75%, 36%)
CMYK	cmyk(68.8%, 75.3%, 0%, 63.5%)
CIE-LAB	lab(13.62, 26.55, -40.74)
CIE-LCH	lch(13.62, 48.63, 303.10°)
OKLab	oklab(26.67% 0.0175 -0.1175)
OKLCH	oklch(26.67% 0.119 278.5)
XYZ	xyz(2.7882, 1.6641, 10.5281)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D175D #575D17

analogous

#17345D #1D175D #40175D

triadic

#1D175D #5D1D17 #175D1D

tetradic

#1D175D #5D1734 #575D17 #175D40

square

#1D175D #5D1734 #575D17 #175D40

split-complementary

#1D175D #5D4017 #345D17

monochromatic

#080619 #0E0B2C #1D175D #2C238E #3C2FBF

Accessibility & contrast

On white

15.76

#1D175D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#1D175D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D175D

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D175D	#FFFFFF	#000000	##FFFFFF
##1D175D	1.00	15.76	1.33	15.76
#FFFFFF	15.76	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265F

Deuteranopia (green-blind)

#00205C

Tritanopia (blue-blind)

#002A38

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #1d175d;
/* rgb */ color: rgb(29, 23, 93);
/* oklch */ color: oklch(26.7% 0.119 278.5);

Tailwind

colors: {
  custom: {
    50: '#63558c',
    500: '#1d175d',
    950: '#000000',
  },
}

SCSS

$custom: #1d175d;
$custom-light: #63558c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d175d",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 93
  },
  "hsl": {
    "h": 245.143,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.26665,
    "c": 0.11884,
    "h": 278.5
  },
  "luminance": 0.01664
}

Semantic roles & 50–950 ramp

primary

#1D175D

secondary

#8C943C

accent

#E344D6

background

#F6F4F8

surface

#EBE8F0

border

#C6C4CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1D175D

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

Preview Lab → · Contrast checker → · Palette generator →