#101A3E#101A3E

#101A3E is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.2% C 0.070 H 268.7°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#101A3E
RGB	rgb(16, 26, 62)
HSL	hsl(227, 59%, 15%)
HSV	hsv(227, 74%, 24%)
CMYK	cmyk(74.2%, 58.1%, 0%, 75.7%)
CIE-LAB	lab(10.53, 9.71, -24.47)
CIE-LCH	lch(10.53, 26.32, 291.65°)
OKLab	oklab(23.23% -0.0015 -0.0702)
OKLCH	oklch(23.23% 0.07 268.7)
XYZ	xyz(1.4523, 1.1966, 4.7109)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A3E #3E3410

analogous

#10313E #101A3E #1D103E

triadic

#101A3E #3E101A #1A3E10

tetradic

#101A3E #3E1031 #3E3410 #103E1D

square

#101A3E #3E1031 #3E3410 #103E1D

split-complementary

#101A3E #3E1D10 #313E10

monochromatic

#060A18 #060A18 #101A3E #1D2E6F #29439F

Accessibility & contrast

On white

16.94

#101A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#101A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A3E

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A3E	#FFFFFF	#000000	##FFFFFF
##101A3E	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061F3F

Deuteranopia (green-blind)

#001B3D

Tritanopia (blue-blind)

#002229

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #101a3e;
/* rgb */ color: rgb(16, 26, 62);
/* oklch */ color: oklch(23.2% 0.070 268.7);

Tailwind

colors: {
  custom: {
    50: '#545673',
    500: '#101a3e',
    950: '#000000',
  },
}

SCSS

$custom: #101a3e;
$custom-light: #545673;
$custom-dark: #000000;

JSON

{
  "hex": "#101a3e",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 62
  },
  "hsl": {
    "h": 226.957,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2323,
    "c": 0.07018,
    "h": 268.7
  },
  "luminance": 0.01197
}

Semantic roles & 50–950 ramp

primary

#101A3E

secondary

#786932

accent

#C046E2

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101A3E

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

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