#12457E#12457E

#12457E is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 39.1% C 0.110 H 254.5°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#12457E
RGB	rgb(18, 69, 126)
HSL	hsl(212, 75%, 28%)
HSV	hsv(212, 86%, 49%)
CMYK	cmyk(85.7%, 45.2%, 0%, 50.6%)
CIE-LAB	lab(29.13, 6.10, -36.90)
CIE-LCH	lch(29.13, 37.40, 279.39°)
OKLab	oklab(39.06% -0.0294 -0.1058)
OKLCH	oklch(39.06% 0.11 254.5)
XYZ	xyz(6.1421, 5.8904, 20.5479)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12457E #7E4B12

analogous

#127B7E #12457E #15127E

triadic

#12457E #7E1245 #457E12

tetradic

#12457E #7E127B #7E4B12 #127E15

square

#12457E #7E127B #7E4B12 #127E15

split-complementary

#12457E #7E1512 #7B7E12

monochromatic

#040F1B #0A2848 #12457E #1A62B4 #2A80E1

Accessibility & contrast

On white

9.64

#12457E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#12457E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12457E

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12457E	#FFFFFF	#000000	##FFFFFF
##12457E	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284A80

Deuteranopia (green-blind)

#12407D

Tritanopia (blue-blind)

#00535B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #12457e;
/* rgb */ color: rgb(18, 69, 126);
/* oklch */ color: oklch(39.1% 0.110 254.5);

Tailwind

colors: {
  custom: {
    50: '#6478a4',
    500: '#12457e',
    950: '#000000',
  },
}

SCSS

$custom: #12457e;
$custom-light: #6478a4;
$custom-dark: #000000;

JSON

{
  "hex": "#12457e",
  "rgb": {
    "r": 18,
    "g": 69,
    "b": 126
  },
  "hsl": {
    "h": 211.667,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.39055,
    "c": 0.10982,
    "h": 254.5
  },
  "luminance": 0.05891
}

Semantic roles & 50–950 ramp

primary

#12457E

secondary

#B47938

accent

#9936F2

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #12457E

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

Preview Lab → · Contrast checker → · Palette generator →