#1A3983#1A3983

#1A3983 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.9% C 0.130 H 263.9°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX#1A3983
RGBrgb(26, 57, 131)
HSLhsl(222, 67%, 31%)
HSVhsv(222, 80%, 51%)
CMYKcmyk(80.2%, 56.5%, 0%, 48.6%)
CIE-LABlab(26.11, 17.40, -44.89)
CIE-LCHlch(26.11, 48.15, 291.19°)
OKLaboklab(36.92% -0.0137 -0.1295)
OKLCHoklch(36.92% 0.13 263.9)
XYZxyz(5.9844, 4.7839, 22.0763)
Luminance0.0478 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A3983 #83641A
analogous
#1A6D83 #1A3983 #301A83
triadic
#1A3983 #831A39 #39831A
tetradic
#1A3983 #831A6D #83641A #1A8330
square
#1A3983 #831A6D #83641A #1A8330
split-complementary
#1A3983 #83301A #6D831A
monochromatic
#060D1D #102350 #1A3983 #244FB6 #3F6CD9

Accessibility & contrast

On white

10.73
#1A3983 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#1A3983 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3983
10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A3983#FFFFFF#000000##FFFFFF
##1A39831.0010.731.9610.73
#FFFFFF10.731.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.731.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004386
Deuteranopia (green-blind)
#003982
Tritanopia (blue-blind)
#004B58
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #1a3983;
/* rgb */ color: rgb(26, 57, 131);
/* oklch */ color: oklch(36.9% 0.130 263.9);
Tailwind
colors: {
  custom: {
    50: '#686ea8',
    500: '#1a3983',
    950: '#000000',
  },
}
SCSS
$custom: #1a3983;
$custom-light: #686ea8;
$custom-dark: #000000;
JSON
{
  "hex": "#1a3983",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 131
  },
  "hsl": {
    "h": 222.286,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36923,
    "c": 0.13019,
    "h": 263.9
  },
  "luminance": 0.04785
}

Semantic roles & 50–950 ramp

primary
#1A3983
secondary
#B79442
accent
#B73EEA
background
#F6F6FA
surface
#ECEBF4
border
#C7C6CE
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #1A3983

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

Preview Lab → · Contrast checker → · Palette generator →

#1A3983 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva