#12458E#12458E

#12458E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.3% C 0.132 H 258.5°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#12458E
RGB	rgb(18, 69, 142)
HSL	hsl(215, 78%, 31%)
HSV	hsv(215, 87%, 56%)
CMYK	cmyk(87.3%, 51.4%, 0%, 44.3%)
CIE-LAB	lab(30.25, 12.79, -45.02)
CIE-LCH	lch(30.25, 46.80, 285.86°)
OKLab	oklab(40.27% -0.0264 -0.1297)
OKLCH	oklch(40.27% 0.132 258.5)
XYZ	xyz(7.2583, 6.3369, 26.4265)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12458E #8E5B12

analogous

#12838E #12458E #1D128E

triadic

#12458E #8E1245 #458E12

tetradic

#12458E #8E1283 #8E5B12 #128E1D

square

#12458E #8E1283 #8E5B12 #128E1D

split-complementary

#12458E #8E1D12 #838E12

monochromatic

#041021 #0B2B58 #12458E #195FC4 #357EE5

Accessibility & contrast

On white

9.26

#12458E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#12458E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12458E

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12458E	#FFFFFF	#000000	##FFFFFF
##12458E	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164D91

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #12458e;
/* rgb */ color: rgb(18, 69, 142);
/* oklch */ color: oklch(40.3% 0.132 258.5);

Tailwind

colors: {
  custom: {
    50: '#6878b0',
    500: '#12458e',
    950: '#000000',
  },
}

SCSS

$custom: #12458e;
$custom-light: #6878b0;
$custom-dark: #000000;

JSON

{
  "hex": "#12458e",
  "rgb": {
    "r": 18,
    "g": 69,
    "b": 142
  },
  "hsl": {
    "h": 215.323,
    "s": 77.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4027,
    "c": 0.13236,
    "h": 258.5
  },
  "luminance": 0.06338
}

Semantic roles & 50–950 ramp

primary

#12458E

secondary

#C28A3A

accent

#A534F4

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #12458E

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

Preview Lab → · Contrast checker → · Palette generator →