#1A175B#1A175B

#1A175B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.2% C 0.117 H 276.6°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#1A175B
RGB	rgb(26, 23, 91)
HSL	hsl(243, 60%, 22%)
HSV	hsv(243, 75%, 36%)
CMYK	cmyk(71.4%, 74.7%, 0%, 64.3%)
CIE-LAB	lab(13.15, 25.38, -40.16)
CIE-LCH	lch(13.15, 47.51, 302.29°)
OKLab	oklab(26.21% 0.0135 -0.116)
OKLCH	oklch(26.21% 0.117 276.6)
XYZ	xyz(2.6201, 1.5875, 10.0638)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A175B #585B17

analogous

#17365B #1A175B #3C175B

triadic

#1A175B #5B1A17 #175B1A

tetradic

#1A175B #5B1736 #585B17 #175B3C

square

#1A175B #5B1736 #585B17 #175B3C

split-complementary

#1A175B #5B3C17 #365B17

monochromatic

#070618 #0C0B2A #1A175B #28238C #3630BD

Accessibility & contrast

On white

15.94

#1A175B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1A175B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A175B

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A175B	#FFFFFF	#000000	##FFFFFF
##1A175B	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255D

Deuteranopia (green-blind)

#001F5A

Tritanopia (blue-blind)

#002937

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1a175b;
/* rgb */ color: rgb(26, 23, 91);
/* oklch */ color: oklch(26.2% 0.117 276.6);

Tailwind

colors: {
  custom: {
    50: '#61548a',
    500: '#1a175b',
    950: '#000000',
  },
}

SCSS

$custom: #1a175b;
$custom-light: #61548a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a175b",
  "rgb": {
    "r": 26,
    "g": 23,
    "b": 91
  },
  "hsl": {
    "h": 242.647,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26205,
    "c": 0.11675,
    "h": 276.6
  },
  "luminance": 0.01588
}

Semantic roles & 50–950 ramp

primary

#1A175B

secondary

#8E923C

accent

#E345DC

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #1A175B

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

Preview Lab → · Contrast checker → · Palette generator →