#101E5A#101E5A

#101E5A is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.8% C 0.109 H 267.9°. Best body text is #FFFFFF at 15.49:1 contrast (WCAG AA passes).

Color values

HEX	#101E5A
RGB	rgb(16, 30, 90)
HSL	hsl(229, 70%, 21%)
HSV	hsv(229, 82%, 35%)
CMYK	cmyk(82.2%, 66.7%, 0%, 64.7%)
CIE-LAB	lab(14.27, 18.68, -37.69)
CIE-LCH	lch(14.27, 42.06, 296.37°)
OKLab	oklab(26.82% -0.004 -0.1089)
OKLCH	oklch(26.82% 0.109 267.9)
XYZ	xyz(2.5228, 1.7766, 9.8808)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101E5A #5A4C10

analogous

#10435A #101E5A #27105A

triadic

#101E5A #5A101E #1E5A10

tetradic

#101E5A #5A1043 #5A4C10 #105A27

square

#101E5A #5A1043 #5A4C10 #105A27

split-complementary

#101E5A #5A2710 #435A10

monochromatic

#05091A #070D26 #101E5A #192F8E #2241C2

Accessibility & contrast

On white

15.49

#101E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#101E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101E5A

15.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101E5A	#FFFFFF	#000000	##FFFFFF
##101E5A	1.00	15.49	1.36	15.49
#FFFFFF	15.49	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285C

Deuteranopia (green-blind)

#002159

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #101e5a;
/* rgb */ color: rgb(16, 30, 90);
/* oklch */ color: oklch(26.8% 0.109 267.9);

Tailwind

colors: {
  custom: {
    50: '#5c5989',
    500: '#101e5a',
    950: '#000000',
  },
}

SCSS

$custom: #101e5a;
$custom-light: #5c5989;
$custom-dark: #000000;

JSON

{
  "hex": "#101e5a",
  "rgb": {
    "r": 16,
    "g": 30,
    "b": 90
  },
  "hsl": {
    "h": 228.649,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26815,
    "c": 0.10902,
    "h": 267.9
  },
  "luminance": 0.01777
}

Semantic roles & 50–950 ramp

primary

#101E5A

secondary

#938133

accent

#CB3BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #101E5A

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

Preview Lab → · Contrast checker → · Palette generator →