#12102F
Closest named color: Rich Black (#0D1B2A). oklch(19.6% 0.06 282.3), rgb(18, 16, 47).
Aa
White text reads best on this color (18.40:1).
About this color
#12102F is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.060 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.041 away. White text reads best on it, at 18.40:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.40:1 |
Values
| HEX | #12102F |
| RGB | rgb(18, 16, 47) |
| HSL | hsl(244, 49%, 12%) |
| OKLCH | oklch(19.6% 0.06 282.3) |
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 #12102F | 18.40:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #12102F | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #12102F text on white | 18.40:1 | AAA | Lc 104.9 | Preferred for body text |
| #12102F text on black | 1.14:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D4D7F3
oklch(88.6% 0.039 280.7)
-
Step 300
300
#B9BCEE
oklch(81% 0.07 282)
-
Step 400
400
#9697E6
oklch(70.7% 0.115 282.5)
-
Step 500
500
#7D7CDE
oklch(63.2% 0.145 281.9)
-
Step 600
600
#6862CC
oklch(55.6% 0.159 282.5)
-
Step 700
700
#5751B0
oklch(49.1% 0.146 282.4)
-
Step 800
800
#47438F
oklch(42.8% 0.122 282.3)
-
Step 900
900
#3B3972
oklch(37.7% 0.095 282.4)
-
Step 950
950 (this color)
#12102F
oklch(19.6% 0.06 282.3)
#12102F 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) | #021530 | 0.027 |
| Deuteranopia (no green cones) | #01132E | 0.028 |
| Tritanopia (no blue cones) | #07171D | 0.051 |
| Achromatopsia (no color) | #141414 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12102F
#12102F
oklch(19.6% 0.06 282.3)
- #191600
#191600
oklch(19.8% 0.042 103)
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 #12102F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.041
- Navy Blue #001146 ΔE 0.052
- Dark Navy #000435 ΔE 0.056
- Rich Navy #001219 ΔE 0.059
- Midnight Purple #280137 ΔE 0.060
- Midnight #03012D ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.063
- Night Blue #040348 ΔE 0.064
Use #12102F 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.