#1A175A#1A175A

#1A175A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.115 H 276.8°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#1A175A
RGB	rgb(26, 23, 90)
HSL	hsl(243, 59%, 22%)
HSV	hsv(243, 74%, 35%)
CMYK	cmyk(71.1%, 74.4%, 0%, 64.7%)
CIE-LAB	lab(13.05, 25.00, -39.66)
CIE-LCH	lch(13.05, 46.89, 302.23°)
OKLab	oklab(26.1% 0.0136 -0.1145)
OKLCH	oklch(26.1% 0.115 276.8)
XYZ	xyz(2.5773, 1.5704, 9.8382)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A175A #575A17

analogous

#17355A #1A175A #3C175A

triadic

#1A175A #5A1A17 #175A1A

tetradic

#1A175A #5A1735 #575A17 #175A3C

square

#1A175A #5A1735 #575A17 #175A3C

split-complementary

#1A175A #5A3C17 #355A17

monochromatic

#070618 #0C0B29 #1A175A #28238B #3630BB

Accessibility & contrast

On white

15.98

#1A175A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1A175A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A175A

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A175A	#FFFFFF	#000000	##FFFFFF
##1A175A	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245C

Deuteranopia (green-blind)

#001F59

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1a175a;
/* rgb */ color: rgb(26, 23, 90);
/* oklch */ color: oklch(26.1% 0.115 276.8);

Tailwind

colors: {
  custom: {
    50: '#615489',
    500: '#1a175a',
    950: '#000000',
  },
}

SCSS

$custom: #1a175a;
$custom-light: #615489;
$custom-dark: #000000;

JSON

{
  "hex": "#1a175a",
  "rgb": {
    "r": 26,
    "g": 23,
    "b": 90
  },
  "hsl": {
    "h": 242.687,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26097,
    "c": 0.11531,
    "h": 276.8
  },
  "luminance": 0.01571
}

Semantic roles & 50–950 ramp

primary

#1A175A

secondary

#8D913C

accent

#E245DB

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #1A175A

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

Preview Lab → · Contrast checker → · Palette generator →