#12458F#12458F

#12458F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.4% C 0.134 H 258.7°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#12458F
RGB	rgb(18, 69, 143)
HSL	hsl(216, 78%, 32%)
HSV	hsv(216, 87%, 56%)
CMYK	cmyk(87.4%, 51.7%, 0%, 43.9%)
CIE-LAB	lab(30.32, 13.21, -45.51)
CIE-LCH	lch(30.32, 47.39, 286.18°)
OKLab	oklab(40.35% -0.0263 -0.1311)
OKLCH	oklch(40.35% 0.134 258.7)
XYZ	xyz(7.3337, 6.3671, 26.8237)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12458F #8F5C12

analogous

#12848F #12458F #1E128F

triadic

#12458F #8F1245 #458F12

tetradic

#12458F #8F1284 #8F5C12 #128F1E

square

#12458F #8F1284 #8F5C12 #128F1E

split-complementary

#12458F #8F1E12 #848F12

monochromatic

#041122 #0B2B59 #12458F #195FC5 #367EE6

Accessibility & contrast

On white

9.24

#12458F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#12458F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12458F

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12458F	#FFFFFF	#000000	##FFFFFF
##12458F	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)

#154D92

Deuteranopia (green-blind)

#00428E

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #12458f;
/* rgb */ color: rgb(18, 69, 143);
/* oklch */ color: oklch(40.4% 0.134 258.7);

Tailwind

colors: {
  custom: {
    50: '#6978b0',
    500: '#12458f',
    950: '#000000',
  },
}

SCSS

$custom: #12458f;
$custom-light: #6978b0;
$custom-dark: #000000;

JSON

{
  "hex": "#12458f",
  "rgb": {
    "r": 18,
    "g": 69,
    "b": 143
  },
  "hsl": {
    "h": 215.52,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.4035,
    "c": 0.13375,
    "h": 258.7
  },
  "luminance": 0.06368
}

Semantic roles & 50–950 ramp

primary

#12458F

secondary

#C38B3A

accent

#A634F4

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #12458F

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

Preview Lab → · Contrast checker → · Palette generator →