#1C458B#1C458B

#1C458B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.3% C 0.126 H 260.4°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#1C458B
RGB	rgb(28, 69, 139)
HSL	hsl(218, 66%, 33%)
HSV	hsv(218, 80%, 55%)
CMYK	cmyk(79.9%, 50.4%, 0%, 45.5%)
CIE-LAB	lab(30.32, 12.55, -43.04)
CIE-LCH	lch(30.32, 44.84, 286.26°)
OKLab	oklab(40.34% -0.0209 -0.1237)
OKLCH	oklch(40.34% 0.126 260.4)
XYZ	xyz(7.2655, 6.3664, 25.2670)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C458B #8B621C

analogous

#1C7C8B #1C458B #2B1C8B

triadic

#1C458B #8B1C45 #458B1C

tetradic

#1C458B #8B1C7C #8B621C #1C8B2B

square

#1C458B #8B1C7C #8B621C #1C8B2B

split-complementary

#1C458B #8B2B1C #7C8B1C

monochromatic

#071225 #122C58 #1C458B #265EBE #477EDA

Accessibility & contrast

On white

9.24

#1C458B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1C458B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C458B

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C458B	#FFFFFF	#000000	##FFFFFF
##1C458B	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4D8E

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c458b;
/* rgb */ color: rgb(28, 69, 139);
/* oklch */ color: oklch(40.3% 0.126 260.4);

Tailwind

colors: {
  custom: {
    50: '#6a78ad',
    500: '#1c458b',
    950: '#000000',
  },
}

SCSS

$custom: #1c458b;
$custom-light: #6a78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c458b",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 139
  },
  "hsl": {
    "h": 217.838,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40338,
    "c": 0.12551,
    "h": 260.4
  },
  "luminance": 0.06367
}

Semantic roles & 50–950 ramp

primary

#1C458B

secondary

#BC9147

accent

#AA3EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C458B

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

Preview Lab → · Contrast checker → · Palette generator →