#021715
Closest named color: Rich Navy (#001219). oklch(18.6% 0.029 187), rgb(2, 23, 21).
Aa
White text reads best on this color (18.48:1).
About this color
#021715 is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.025 away. White text reads best on it, at 18.48:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.13:1 |
| White text | 18.48:1 |
Values
| HEX | #021715 |
| RGB | rgb(2, 23, 21) |
| HSL | hsl(174, 84%, 5%) |
| OKLCH | oklch(18.6% 0.029 187) |
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 #021715 | 18.48:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #021715 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #021715 text on white | 18.48:1 | AAA | Lc 105.0 | Preferred for body text |
| #021715 text on black | 1.13:1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#A8C8C4
oklch(80.8% 0.035 187.3)
-
Step 400
400
#79ACA6
oklch(70.7% 0.055 186.9)
-
Step 500
500
#539890
oklch(63.2% 0.071 185.9)
-
Step 600
600
#34827B
oklch(55.6% 0.077 187.1)
-
Step 700
700
#256E67
oklch(49.1% 0.072 186.2)
-
Step 800
800
#215954
oklch(42.6% 0.059 187.1)
-
Step 900
900
#214A46
oklch(37.8% 0.047 187)
-
Step 950
950 (this color)
#021715
oklch(18.6% 0.029 187)
#021715 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) | #151515 | 0.031 |
| Deuteranopia (no green cones) | #121315 | 0.029 |
| Tritanopia (no blue cones) | #001816 | 0.004 |
| Achromatopsia (no color) | #141414 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #021715
#021715
oklch(18.6% 0.029 187)
- #1E0D11
#1E0D11
oklch(18.6% 0.03 5.2)
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 #021715, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.025
- Almost Black #070D0D ΔE 0.039
- Rich Black #0D1B2A ΔE 0.047
- Dark #1B2431 ΔE 0.079
- Jet #212529 ΔE 0.081
- Very Dark Brown #1D0200 ΔE 0.088
- Oxford Blue #1B263B ΔE 0.095
- Dark Forest Green #002D04 ΔE 0.097
Use #021715 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.