#00102D
Closest named color: Dark Navy (#000435). oklch(18% 0.064 257.3), rgb(0, 16, 45).
Aa
White text reads best on this color (18.88:1).
About this color
#00102D is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.064 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.038 away. White text reads best on it, at 18.88:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.11:1 |
| White text | 18.88:1 |
Values
| HEX | #00102D |
| RGB | rgb(0, 16, 45) |
| HSL | hsl(219, 100%, 9%) |
| OKLCH | oklch(18% 0.064 257.3) |
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 #00102D | 18.88:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #00102D | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #00102D text on white | 18.88:1 | AAA | Lc 105.1 | Preferred for body text |
| #00102D text on black | 1.11:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF6
oklch(88.6% 0.043 257.1)
-
Step 300
300
#A2C3F2
oklch(81% 0.076 257.2)
-
Step 400
400
#6EA2EC
oklch(70.7% 0.123 257.3)
-
Step 500
500
#4689E6
oklch(63.2% 0.156 257.2)
-
Step 600
600
#2670D4
oklch(55.5% 0.17 257.5)
-
Step 700
700
#185DB8
oklch(49% 0.159 257.5)
-
Step 800
800
#174D95
oklch(42.8% 0.131 257.3)
-
Step 900
900
#1A4176
oklch(37.8% 0.101 257)
-
Step 950
950 (this color)
#00102D
oklch(18% 0.064 257.3)
#00102D 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) | #00132E | 0.010 |
| Deuteranopia (no green cones) | #000F2C | 0.004 |
| Tritanopia (no blue cones) | #00171C | 0.048 |
| Achromatopsia (no color) | #111111 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00102D
#00102D
oklch(18% 0.064 257.3)
- #1B0F00
#1B0F00
oklch(18.1% 0.038 76.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #00102D
These curated palettes and gradients contain exactly #00102D. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.038
- Rich Navy #001219 ΔE 0.044
- Dark Navy Blue #00022E ΔE 0.046
- Very Dark Blue #000133 ΔE 0.047
- Midnight #03012D ΔE 0.048
- Rich Black #0D1B2A ΔE 0.048
- Navy Blue #001146 ΔE 0.049
- Night Blue #040348 ΔE 0.059
Use #00102D 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.