#101658#101658

#101658 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.117 H 270.7°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#101658
RGB	rgb(16, 22, 88)
HSL	hsl(235, 69%, 20%)
HSV	hsv(235, 82%, 35%)
CMYK	cmyk(81.8%, 75%, 0%, 65.5%)
CIE-LAB	lab(11.88, 23.64, -40.26)
CIE-LCH	lch(11.88, 46.69, 300.42°)
OKLab	oklab(25% 0.0014 -0.1165)
OKLCH	oklch(25% 0.117 270.7)
XYZ	xyz(2.2614, 1.3883, 9.3794)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101658 #585210

analogous

#103A58 #101658 #2E1058

triadic

#101658 #581016 #165810

tetradic

#101658 #58103A #585210 #10582E

square

#101658 #58103A #585210 #10582E

split-complementary

#101658 #582E10 #3A5810

monochromatic

#05061A #070924 #101658 #19238C #2330C0

Accessibility & contrast

On white

16.43

#101658 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101658 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101658

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101658	#FFFFFF	#000000	##FFFFFF
##101658	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235A

Deuteranopia (green-blind)

#001C57

Tritanopia (blue-blind)

#002835

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101658;
/* rgb */ color: rgb(16, 22, 88);
/* oklch */ color: oklch(25.0% 0.117 270.7);

Tailwind

colors: {
  custom: {
    50: '#5c5388',
    500: '#101658',
    950: '#000000',
  },
}

SCSS

$custom: #101658;
$custom-light: #5c5388;
$custom-dark: #000000;

JSON

{
  "hex": "#101658",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 88
  },
  "hsl": {
    "h": 235,
    "s": 69.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.25004,
    "c": 0.11654,
    "h": 270.7
  },
  "luminance": 0.01389
}

Semantic roles & 50–950 ramp

primary

#101658

secondary

#918932

accent

#DD3CEC

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #101658

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

Preview Lab → · Contrast checker → · Palette generator →