#02102B
Closest named color: Rich Navy (#001219). oklch(17.9% 0.059 259.2), rgb(2, 16, 43).
Aa
White text reads best on this color (18.89:1).
About this color
#02102B is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.059 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.040 away. White text reads best on it, at 18.89:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.89:1 |
Values
| HEX | #02102B |
| RGB | rgb(2, 16, 43) |
| HSL | hsl(220, 91%, 9%) |
| OKLCH | oklch(17.9% 0.059 259.2) |
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 #02102B | 18.89:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #02102B | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #02102B text on white | 18.89:1 | AAA | Lc 105.2 | Preferred for body text |
| #02102B 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A6C2EF
oklch(80.9% 0.071 259.8)
-
Step 400
400
#75A1E7
oklch(70.6% 0.114 259.4)
-
Step 500
500
#5188DF
oklch(63% 0.144 259.2)
-
Step 600
600
#3570CD
oklch(55.5% 0.157 259.3)
-
Step 700
700
#285DB2
oklch(49% 0.147 259.6)
-
Step 800
800
#224D90
oklch(42.8% 0.121 259.1)
-
Step 900
900
#214173
oklch(37.8% 0.094 259)
-
Step 950
950 (this color)
#02102B
oklch(17.9% 0.059 259.2)
#02102B 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) | #02132C | 0.010 |
| Deuteranopia (no green cones) | #000F2A | 0.006 |
| Tritanopia (no blue cones) | #00171B | 0.047 |
| Achromatopsia (no color) | #111111 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02102B
#02102B
oklch(17.9% 0.059 259.2)
- #1A0F00
#1A0F00
oklch(17.9% 0.037 79)
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 #02102B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.040
- Dark Navy #000435 ΔE 0.041
- Rich Black #0D1B2A ΔE 0.046
- Dark Navy Blue #00022E ΔE 0.048
- Midnight #03012D ΔE 0.049
- Very Dark Blue #000133 ΔE 0.050
- Navy Blue #001146 ΔE 0.053
- Almost Black #070D0D ΔE 0.062
Use #02102B 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.