#123458#123458

#123458 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.1% C 0.075 H 252.4°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#123458
RGB	rgb(18, 52, 88)
HSL	hsl(211, 66%, 21%)
HSV	hsv(211, 80%, 35%)
CMYK	cmyk(79.5%, 40.9%, 0%, 65.5%)
CIE-LAB	lab(21.17, 1.90, -25.23)
CIE-LCH	lch(21.17, 25.30, 274.30°)
OKLab	oklab(32.05% -0.0228 -0.0719)
OKLCH	oklch(32.05% 0.075 252.4)
XYZ	xyz(3.2382, 3.2888, 9.6948)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123458 #583612

analogous

#125758 #123458 #131258

triadic

#123458 #581234 #345812

tetradic

#123458 #581257 #583612 #125813

square

#123458 #581257 #583612 #125813

split-complementary

#123458 #581312 #575812

monochromatic

#050F19 #081625 #123458 #1C528B #2770BE

Accessibility & contrast

On white

12.67

#123458 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#123458 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123458

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123458	#FFFFFF	#000000	##FFFFFF
##123458	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233659

Deuteranopia (green-blind)

#193057

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #123458;
/* rgb */ color: rgb(18, 52, 88);
/* oklch */ color: oklch(32.1% 0.075 252.4);

Tailwind

colors: {
  custom: {
    50: '#5b6b87',
    500: '#123458',
    950: '#000000',
  },
}

SCSS

$custom: #123458;
$custom-light: #5b6b87;
$custom-dark: #000000;

JSON

{
  "hex": "#123458",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 88
  },
  "hsl": {
    "h": 210.857,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32054,
    "c": 0.07541,
    "h": 252.4
  },
  "luminance": 0.03289
}

Semantic roles & 50–950 ramp

primary

#123458

secondary

#916435

accent

#963FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123458

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

Preview Lab → · Contrast checker → · Palette generator →