#00102F
Closest named color: Dark Navy (#000435). oklch(18.2% 0.068 258.2), rgb(0, 16, 47).
Aa
White text reads best on this color (18.83:1).
About this color
#00102F is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.068 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.036 away. White text reads best on it, at 18.83:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.11:1 |
| White text | 18.83:1 |
Values
| HEX | #00102F |
| RGB | rgb(0, 16, 47) |
| HSL | hsl(220, 100%, 9%) |
| OKLCH | oklch(18.2% 0.068 258.2) |
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 #00102F | 18.83:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #00102F | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #00102F text on white | 18.83:1 | AAA | Lc 105.1 | Preferred for body text |
| #00102F 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A1C3F5
oklch(81% 0.08 257.9)
-
Step 400
400
#6DA1F0
oklch(70.6% 0.129 258.5)
-
Step 500
500
#4588EB
oklch(63.2% 0.164 258.2)
-
Step 600
600
#246FD9
oklch(55.6% 0.178 258.2)
-
Step 700
700
#165CBC
oklch(49.1% 0.166 258.2)
-
Step 800
800
#154C98
oklch(42.7% 0.137 258)
-
Step 900
900
#194079
oklch(37.7% 0.107 258.2)
-
Step 950
950 (this color)
#00102F
oklch(18.2% 0.068 258.2)
#00102F 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) | #001430 | 0.014 |
| Deuteranopia (no green cones) | #000F2E | 0.004 |
| Tritanopia (no blue cones) | #00181D | 0.051 |
| Achromatopsia (no color) | #111111 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00102F
#00102F
oklch(18.2% 0.068 258.2)
- #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 with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #00102F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.036
- Navy Blue #001146 ΔE 0.045
- Dark Navy Blue #00022E ΔE 0.045
- Very Dark Blue #000133 ΔE 0.046
- Midnight #03012D ΔE 0.048
- Rich Navy #001219 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.049
- Night Blue #040348 ΔE 0.055
Use #00102F 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.