#100423
Closest named color: Midnight (#03012D). oklch(15.5% 0.064 297.4), rgb(16, 4, 35).
Aa
White text reads best on this color (19.74:1).
About this color
#100423 is a very dark, muted purple. In OKLCH its lightness is 15%, its chroma 0.064 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.044 away. White text reads best on it, at 19.74:1.
| Hue family | Purples |
| Lightness | very dark (15%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Midnight (#03012D) |
| Black text | 1.06:1 |
| White text | 19.74:1 |
Values
| HEX | #100423 |
| RGB | rgb(16, 4, 35) |
| HSL | hsl(263, 79%, 8%) |
| OKLCH | oklch(15.5% 0.064 297.4) |
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 #100423 | 19.74:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100423 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #100423 text on white | 19.74:1 | AAA | Lc 105.6 | Preferred for body text |
| #100423 text on black | 1.06:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F2
oklch(88.6% 0.042 297.7)
-
Step 300
300
#C6B7EC
oklch(81% 0.075 297.7)
-
Step 400
400
#A990E2
oklch(70.7% 0.12 297.3)
-
Step 500
500
#9572DA
oklch(63.2% 0.154 297.3)
-
Step 600
600
#8058C7
oklch(55.6% 0.167 297.3)
-
Step 700
700
#6C47AC
oklch(49.1% 0.155 297.2)
-
Step 800
800
#583B8C
oklch(42.7% 0.13 297.1)
-
Step 900
900
#483370
oklch(37.6% 0.102 297.1)
-
Step 950
950 (this color)
#100423
oklch(15.5% 0.064 297.4)
#100423 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) | #000B24 | 0.042 |
| Deuteranopia (no green cones) | #000A22 | 0.041 |
| Tritanopia (no blue cones) | #0B0B12 | 0.049 |
| Achromatopsia (no color) | #0A0A0A | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100423
#100423
oklch(15.5% 0.064 297.4)
- #0B0E00
#0B0E00
oklch(15.5% 0.036 117.7)
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 #100423, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.044
- Dark Navy Blue #00022E ΔE 0.052
- Dark Navy #000435 ΔE 0.055
- Very Dark Blue #000133 ΔE 0.057
- Rich Navy #001219 ΔE 0.065
- Almost Black #070D0D ΔE 0.066
- Midnight Purple #280137 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.072
Use #100423 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.