#1A177F#1A177F

#1A177F is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.165 H 272.0°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#1A177F
RGB	rgb(26, 23, 127)
HSL	hsl(242, 69%, 29%)
HSV	hsv(242, 82%, 50%)
CMYK	cmyk(79.5%, 81.9%, 0%, 50.2%)
CIE-LAB	lab(17.29, 38.20, -56.84)
CIE-LCH	lch(17.29, 68.48, 303.91°)
OKLab	oklab(30.36% 0.0058 -0.1645)
OKLCH	oklch(30.36% 0.165 272)
XYZ	xyz(4.5619, 2.3642, 20.2905)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A177F #7C7F17

analogous

#17487F #1A177F #4E177F

triadic

#1A177F #7F1A17 #177F1A

tetradic

#1A177F #7F1748 #7C7F17 #177F4E

square

#1A177F #7F1748 #7C7F17 #177F4E

split-complementary

#1A177F #7F4E17 #487F17

monochromatic

#05051A #0F0E4B #1A177F #2520B3 #3B36DB

Accessibility & contrast

On white

14.26

#1A177F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1A177F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A177F

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A177F	#FFFFFF	#000000	##FFFFFF
##1A177F	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F82

Deuteranopia (green-blind)

#00257D

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1a177f;
/* rgb */ color: rgb(26, 23, 127);
/* oklch */ color: oklch(30.4% 0.165 272.0);

Tailwind

colors: {
  custom: {
    50: '#6a57a5',
    500: '#1a177f',
    950: '#000000',
  },
}

SCSS

$custom: #1a177f;
$custom-light: #6a57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a177f",
  "rgb": {
    "r": 26,
    "g": 23,
    "b": 127
  },
  "hsl": {
    "h": 241.731,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30362,
    "c": 0.1646,
    "h": 272
  },
  "luminance": 0.02365
}

Semantic roles & 50–950 ramp

primary

#1A177F

secondary

#B0B43E

accent

#EC3CE7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1A177F

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

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