#1A317D#1A317D

#1A317D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.7% C 0.132 H 266.5°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#1A317D
RGB	rgb(26, 49, 125)
HSL	hsl(226, 66%, 30%)
HSV	hsv(226, 79%, 49%)
CMYK	cmyk(79.2%, 60.8%, 0%, 51%)
CIE-LAB	lab(23.33, 20.61, -45.65)
CIE-LCH	lch(23.33, 50.08, 294.29°)
OKLab	oklab(34.67% -0.0081 -0.1318)
OKLCH	oklch(34.67% 0.132 266.5)
XYZ	xyz(5.2247, 3.8963, 19.8748)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A317D #7D661A

analogous

#1A627D #1A317D #351A7D

triadic

#1A317D #7D1A31 #317D1A

tetradic

#1A317D #7D1A62 #7D661A #1A7D35

square

#1A317D #7D1A62 #7D661A #1A7D35

split-complementary

#1A317D #7D351A #627D1A

monochromatic

#050A19 #0F1D4A #1A317D #2545B0 #3B5FD6

Accessibility & contrast

On white

11.80

#1A317D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1A317D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A317D

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A317D	#FFFFFF	#000000	##FFFFFF
##1A317D	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C80

Deuteranopia (green-blind)

#00337C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1a317d;
/* rgb */ color: rgb(26, 49, 125);
/* oklch */ color: oklch(34.7% 0.132 266.5);

Tailwind

colors: {
  custom: {
    50: '#6768a3',
    500: '#1a317d',
    950: '#000000',
  },
}

SCSS

$custom: #1a317d;
$custom-light: #6768a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a317d",
  "rgb": {
    "r": 26,
    "g": 49,
    "b": 125
  },
  "hsl": {
    "h": 226.061,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34674,
    "c": 0.13208,
    "h": 266.5
  },
  "luminance": 0.03897
}

Semantic roles & 50–950 ramp

primary

#1A317D

secondary

#B19742

accent

#C13FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A317D

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

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