#1245B4#1245B4

#1245B4 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.5% C 0.184 H 262.8°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1245B4
RGB	rgb(18, 69, 180)
HSL	hsl(221, 82%, 39%)
HSV	hsv(221, 90%, 71%)
CMYK	cmyk(90%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(33.30, 28.25, -62.96)
CIE-LCH	lch(33.30, 69.01, 294.16°)
OKLab	oklab(43.54% -0.0232 -0.1824)
OKLCH	oklch(43.54% 0.184 262.8)
XYZ	xyz(10.6128, 7.6787, 44.0939)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1245B4 #B48112

analogous

#1296B4 #1245B4 #3012B4

triadic

#1245B4 #B41245 #45B412

tetradic

#1245B4 #B41296 #B48112 #12B430

square

#1245B4 #B41296 #B48112 #12B430

split-complementary

#1245B4 #B43012 #96B412

monochromatic

#071A45 #0C307C #1245B4 #1B5CE8 #5383EE

Accessibility & contrast

On white

8.28

#1245B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1245B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1245B4

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1245B4	#FFFFFF	#000000	##FFFFFF
##1245B4	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1245b4;
/* rgb */ color: rgb(18, 69, 180);
/* oklch */ color: oklch(43.5% 0.184 262.8);

Tailwind

colors: {
  custom: {
    50: '#7378cb',
    500: '#1245b4',
    950: '#000000',
  },
}

SCSS

$custom: #1245b4;
$custom-light: #7378cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1245b4",
  "rgb": {
    "r": 18,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 221.111,
    "s": 81.818,
    "l": 38.824
  },
  "oklch": {
    "l": 0.43539,
    "c": 0.18384,
    "h": 262.8
  },
  "luminance": 0.0768
}

Semantic roles & 50–950 ramp

primary

#1245B4

secondary

#D0A852

accent

#B930F8

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1245B4

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

Preview Lab → · Contrast checker → · Palette generator →