#1C377A#1C377A

#1C377A is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.8% C 0.119 H 264.6°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX#1C377A
RGBrgb(28, 55, 122)
HSLhsl(223, 63%, 29%)
HSVhsv(223, 77%, 48%)
CMYKcmyk(77%, 54.9%, 0%, 52.2%)
CIE-LABlab(24.90, 15.40, -41.19)
CIE-LCHlch(24.90, 43.97, 290.50°)
OKLaboklab(35.81% -0.0113 -0.1186)
OKLCHoklch(35.81% 0.119 264.6)
XYZxyz(5.3567, 4.3838, 18.9724)
Luminance0.0438 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C377A #7A5F1C
analogous
#1C667A #1C377A #301C7A
triadic
#1C377A #7A1C37 #377A1C
tetradic
#1C377A #7A1C66 #7A5F1C #1C7A30
square
#1C377A #7A1C66 #7A5F1C #1C7A30
split-complementary
#1C377A #7A301C #667A1C
monochromatic
#060B19 #112148 #1C377A #274DAC #3E69D3

Accessibility & contrast

On white

11.19
#1C377A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.88
#1C377A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C377A
11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C377A#FFFFFF#000000##FFFFFF
##1C377A1.0011.191.8811.19
#FFFFFF11.191.0021.001.00
#0000001.8821.001.0021.00
##FFFFFF11.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#07407C
Deuteranopia (green-blind)
#003779
Tritanopia (blue-blind)
#004753
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #1c377a;
/* rgb */ color: rgb(28, 55, 122);
/* oklch */ color: oklch(35.8% 0.119 264.6);
Tailwind
colors: {
  custom: {
    50: '#676da1',
    500: '#1c377a',
    950: '#000000',
  },
}
SCSS
$custom: #1c377a;
$custom-light: #676da1;
$custom-dark: #000000;
JSON
{
  "hex": "#1c377a",
  "rgb": {
    "r": 28,
    "g": 55,
    "b": 122
  },
  "hsl": {
    "h": 222.766,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35808,
    "c": 0.11911,
    "h": 264.6
  },
  "luminance": 0.04384
}

Semantic roles & 50–950 ramp

primary
#1C377A
secondary
#AE8F44
accent
#B742E6
background
#F6F6FA
surface
#EBEBF3
border
#C6C6CD
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #1C377A

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

Preview Lab → · Contrast checker → · Palette generator →

#1C377A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva