#170E5B#170E5B
#170E5B is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.6% C 0.128 H 276.7°. Best body text is #FFFFFF at 16.79:1 contrast (WCAG AA passes).
Color values
| HEX | #170E5B |
|---|---|
| RGB | rgb(23, 14, 91) |
| HSL | hsl(247, 73%, 21%) |
| HSV | hsv(247, 85%, 36%) |
| CMYK | cmyk(74.7%, 84.6%, 0%, 64.3%) |
| CIE-LAB | lab(10.93, 30.57, -43.84) |
| CIE-LCH | lch(10.93, 53.44, 304.89°) |
| OKLab | oklab(24.57% 0.0148 -0.1267) |
| OKLCH | oklch(24.57% 0.128 276.7) |
| XYZ | xyz(2.3981, 1.2513, 10.0107) |
| Luminance | 0.0125 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 2.23
Darkblue (survey)
#030764
ΔE00 2.81
Dark Blue
#00035B
ΔE00 3.00
Night Blue
#040348
ΔE00 3.86
Midnight Blue
#191970
ΔE00 4.03
Dark Royal Blue
#02066F
ΔE00 4.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#170E5B #525B0E
analogous
#0E2B5B #170E5B #3D0E5B
triadic
#170E5B #5B170E #0E5B17
tetradic
#170E5B #5B0E2B #525B0E #0E5B3D
square
#170E5B #5B0E2B #525B0E #0E5B3D
split-complementary
#170E5B #5B3D0E #2B5B0E
monochromatic
#07041B #0A0626 #170E5B #241690 #321EC5
Accessibility & contrast
On white
16.79
#170E5B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.25
#170E5B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #170E5B
16.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##170E5B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##170E5B | 1.00 | 16.79 | 1.25 | 16.79 |
| #FFFFFF | 16.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.25 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00205D
Deuteranopia (green-blind)
#001A5A
Tritanopia (blue-blind)
#002534
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #170e5b; /* rgb */ color: rgb(23, 14, 91); /* oklch */ color: oklch(24.6% 0.128 276.7);
Tailwind
colors: {
custom: {
50: '#614f8a',
500: '#170e5b',
950: '#000000',
},
}SCSS
$custom: #170e5b; $custom-light: #614f8a; $custom-dark: #000000;
JSON
{
"hex": "#170e5b",
"rgb": {
"r": 23,
"g": 14,
"b": 91
},
"hsl": {
"h": 247.013,
"s": 73.333,
"l": 20.588
},
"oklch": {
"l": 0.24567,
"c": 0.12755,
"h": 276.7
},
"luminance": 0.01252
}Semantic roles & 50–950 ramp
primary
#170E5B
secondary
#899530
accent
#F038DA
background
#F6F4F8
surface
#EBE7F0
border
#C6C3CB
text
#06020C
muted
#7A787D