#051016
Closest named color: Rich Navy (#001219). oklch(16.5% 0.021 231.7), rgb(5, 16, 22).
Aa
White text reads best on this color (19.22:1).
About this color
#051016 is a very dark close to neutral grey. In OKLCH its lightness is 17%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.011 away. White text reads best on it, at 19.22:1.
| Hue family | Neutrals |
| Lightness | very dark (17%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.22:1 |
Values
| HEX | #051016 |
| RGB | rgb(5, 16, 22) |
| HSL | hsl(201, 63%, 5%) |
| OKLCH | oklch(16.5% 0.021 231.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #051016 | 19.22:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #051016 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #051016 text on white | 19.22:1 | AAA | Lc 105.5 | Preferred for body text |
| #051016 text on black | 1.09:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B1C4CE
oklch(80.9% 0.025 230.5)
-
Step 400
400
#88A6B6
oklch(70.8% 0.041 231.3)
-
Step 500
500
#6A90A4
oklch(63.2% 0.052 231.5)
-
Step 600
600
#517A8F
oklch(55.8% 0.056 231.4)
-
Step 700
700
#416679
oklch(49% 0.052 231.6)
-
Step 800
800
#365363
oklch(42.6% 0.044 233.3)
-
Step 900
900
#2F4551
oklch(37.7% 0.034 232.7)
-
Step 950
950 (this color)
#051016
oklch(16.5% 0.021 231.7)
#051016 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0D1016 | 0.014 |
| Deuteranopia (no green cones) | #0A0E16 | 0.011 |
| Tritanopia (no blue cones) | #001212 | 0.017 |
| Achromatopsia (no color) | #0F0F0F | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051016
#051016
oklch(16.5% 0.021 231.7)
- #160C06
#160C06
oklch(16.6% 0.022 54.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #051016, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.011
- Almost Black #070D0D ΔE 0.019
- Rich Black #0D1B2A ΔE 0.055
- Very Dark Brown #1D0200 ΔE 0.076
- Dark Navy Blue #00022E ΔE 0.076
- Midnight #03012D ΔE 0.076
- Dark Navy #000435 ΔE 0.079
- Very Dark Blue #000133 ΔE 0.083
Use #051016 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.