#1C448B#1C448B

#1C448B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.127 H 260.9°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C448B
RGB	rgb(28, 68, 139)
HSL	hsl(218, 66%, 33%)
HSV	hsv(218, 80%, 55%)
CMYK	cmyk(79.9%, 51.1%, 0%, 45.5%)
CIE-LAB	lab(30.02, 13.24, -43.52)
CIE-LCH	lch(30.02, 45.49, 286.92°)
OKLab	oklab(40.11% -0.0201 -0.1252)
OKLCH	oklch(40.11% 0.127 260.9)
XYZ	xyz(7.2045, 6.2444, 25.2467)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C448B #8B631C

analogous

#1C7C8B #1C448B #2B1C8B

triadic

#1C448B #8B1C44 #448B1C

tetradic

#1C448B #8B1C7C #8B631C #1C8B2B

square

#1C448B #8B1C7C #8B631C #1C8B2B

split-complementary

#1C448B #8B2B1C #7C8B1C

monochromatic

#071225 #122B58 #1C448B #265DBE #477CDA

Accessibility & contrast

On white

9.34

#1C448B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1C448B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C448B

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C448B	#FFFFFF	#000000	##FFFFFF
##1C448B	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194C8E

Deuteranopia (green-blind)

#00428A

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c448b;
/* rgb */ color: rgb(28, 68, 139);
/* oklch */ color: oklch(40.1% 0.127 260.9);

Tailwind

colors: {
  custom: {
    50: '#6a77ad',
    500: '#1c448b',
    950: '#000000',
  },
}

SCSS

$custom: #1c448b;
$custom-light: #6a77ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c448b",
  "rgb": {
    "r": 28,
    "g": 68,
    "b": 139
  },
  "hsl": {
    "h": 218.378,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.4011,
    "c": 0.1268,
    "h": 260.9
  },
  "luminance": 0.06245
}

Semantic roles & 50–950 ramp

primary

#1C448B

secondary

#BC9247

accent

#AC3EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C448B

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

Preview Lab → · Contrast checker → · Palette generator →