#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
RGBrgb(26, 58, 117)
HSLhsl(219, 64%, 28%)
HSVhsv(219, 78%, 46%)
CMYKcmyk(77.8%, 50.4%, 0%, 54.1%)
CIE-LABlab(25.35, 10.96, -37.30)
CIE-LCHlch(25.35, 38.88, 286.37°)
OKLaboklab(36.01% -0.0163 -0.1071)
OKLCHoklch(36.01% 0.108 261.4)
XYZxyz(5.1488, 4.5295, 17.4291)
Luminance0.0453 (WCAG relative)
Temperaturecool
Familyblue

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
##1A3A751.0011.021.9111.02
#FFFFFF11.021.0021.001.00
#0000001.9121.001.0021.00
##FFFFFF11.021.0021.001.00

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 →

#1A3A75 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva