#1A3A75#1A3A75

#1A3A75 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.108 H 261.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A75
RGB	rgb(26, 58, 117)
HSL	hsl(219, 64%, 28%)
HSV	hsv(219, 78%, 46%)
CMYK	cmyk(77.8%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.35, 10.96, -37.30)
CIE-LCH	lch(25.35, 38.88, 286.37°)
OKLab	oklab(36.01% -0.0163 -0.1071)
OKLCH	oklch(36.01% 0.108 261.4)
XYZ	xyz(5.1488, 4.5295, 17.4291)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A75 #75551A

analogous

#1A6775 #1A3A75 #271A75

triadic

#1A3A75 #751A3A #3A751A

tetradic

#1A3A75 #751A67 #75551A #1A7527

square

#1A3A75 #751A67 #75551A #1A7527

split-complementary

#1A3A75 #75271A #67751A

monochromatic

#060C19 #0F2143 #1A3A75 #2553A7 #376ED3

Accessibility & contrast

On white

11.02

#1A3A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1A3A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A75

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A75	#FFFFFF	#000000	##FFFFFF
##1A3A75	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194177

Deuteranopia (green-blind)

#003874

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a3a75;
/* rgb */ color: rgb(26, 58, 117);
/* oklch */ color: oklch(36.0% 0.108 261.4);

Tailwind

colors: {
  custom: {
    50: '#656f9d',
    500: '#1a3a75',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a75;
$custom-light: #656f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a75",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 218.901,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36008,
    "c": 0.10834,
    "h": 261.4
  },
  "luminance": 0.0453
}

Semantic roles & 50–950 ramp

primary

#1A3A75

secondary

#AA8541

accent

#AC41E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3A75

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

Preview Lab → · Contrast checker → · Palette generator →