#170F27
Closest named color: Rich Black (#0D1B2A). oklch(19.3% 0.048 297.1), rgb(23, 15, 39).
Aa
White text reads best on this color (18.51:1).
About this color
#170F27 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.048 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.042 away. White text reads best on it, at 18.51:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.51:1 |
Values
| HEX | #170F27 |
| RGB | rgb(23, 15, 39) |
| HSL | hsl(260, 44%, 11%) |
| OKLCH | oklch(19.3% 0.048 297.1) |
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 #170F27 | 18.51:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #170F27 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #170F27 text on white | 18.51:1 | AAA | Lc 105.0 | Preferred for body text |
| #170F27 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5EC
oklch(88.5% 0.032 297.7)
-
Step 300
300
#C4BAE1
oklch(81% 0.055 296.9)
-
Step 400
400
#A695D2
oklch(70.7% 0.089 296.8)
-
Step 500
500
#9179C7
oklch(63% 0.117 297.1)
-
Step 600
600
#7C61B3
oklch(55.6% 0.126 297.3)
-
Step 700
700
#68509A
oklch(49% 0.117 296.8)
-
Step 800
800
#55427D
oklch(42.7% 0.097 297)
-
Step 900
900
#463864
oklch(37.6% 0.075 297.3)
-
Step 950
950 (this color)
#170F27
oklch(19.3% 0.048 297.1)
#170F27 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) | #071328 | 0.030 |
| Deuteranopia (no green cones) | #091326 | 0.028 |
| Tritanopia (no blue cones) | #141419 | 0.038 |
| Achromatopsia (no color) | #131313 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170F27
#170F27
oklch(19.3% 0.048 297.1)
- #131700
#131700
oklch(19.4% 0.045 117.8)
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 #170F27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.042
- Rich Navy #001219 ΔE 0.055
- Midnight Purple #280137 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.060
- Almost Black #070D0D ΔE 0.065
- Dark Navy #000435 ΔE 0.070
- Navy Blue #001146 ΔE 0.071
- Midnight #03012D ΔE 0.071
Use #170F27 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.