#05102F
Closest named color: Dark Navy (#000435). oklch(18.6% 0.065 264.8), rgb(5, 16, 47).
Aa
White text reads best on this color (18.72:1).
About this color
#05102F is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.065 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.040 away. White text reads best on it, at 18.72:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.12:1 |
| White text | 18.72:1 |
Values
| HEX | #05102F |
| RGB | rgb(5, 16, 47) |
| HSL | hsl(224, 81%, 10%) |
| OKLCH | oklch(18.6% 0.065 264.8) |
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 #05102F | 18.72:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #05102F | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #05102F text on white | 18.72:1 | AAA | Lc 105.1 | Preferred for body text |
| #05102F text on black | 1.12:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBD9F6
oklch(88.4% 0.043 265)
-
Step 300
300
#A8C1F3
oklch(81% 0.076 264)
-
Step 400
400
#7B9FED
oklch(70.8% 0.122 264.6)
-
Step 500
500
#5A84E7
oklch(63.1% 0.156 265)
-
Step 600
600
#406BD5
oklch(55.5% 0.17 264.8)
-
Step 700
700
#3359B9
oklch(49.1% 0.158 264.9)
-
Step 800
800
#2A4996
oklch(42.7% 0.132 264.8)
-
Step 900
900
#263E77
oklch(37.7% 0.102 264.8)
-
Step 950
950 (this color)
#05102F
oklch(18.6% 0.065 264.8)
#05102F 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) | #00102E | 0.010 |
| Tritanopia (no blue cones) | #00181D | 0.052 |
| Achromatopsia (no color) | #121212 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05102F
#05102F
oklch(18.6% 0.065 264.8)
- #1B1100
#1B1100
oklch(18.6% 0.038 83.3)
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 #05102F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.040
- Rich Black #0D1B2A ΔE 0.045
- Navy Blue #001146 ΔE 0.045
- Rich Navy #001219 ΔE 0.049
- Dark Navy Blue #00022E ΔE 0.050
- Midnight #03012D ΔE 0.050
- Very Dark Blue #000133 ΔE 0.051
- Night Blue #040348 ΔE 0.056
Use #05102F 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.