#03153A
Closest named color: Navy Blue (#001146). oklch(20.8% 0.076 261.2), rgb(3, 21, 58).
Aa
White text reads best on this color (17.91:1).
About this color
#03153A is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.076 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.026 away. White text reads best on it, at 17.91:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.91:1 |
Values
| HEX | #03153A |
| RGB | rgb(3, 21, 58) |
| HSL | hsl(220, 90%, 12%) |
| OKLCH | oklch(20.8% 0.076 261.2) |
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 #03153A | 17.91:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #03153A | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #03153A text on white | 17.91:1 | AAA | Lc 104.4 | Preferred for body text |
| #03153A text on black | 1.17:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFC
oklch(93.5% 0.027 262.3)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A0C2FC
oklch(81% 0.09 260.9)
-
Step 400
400
#6C9FFA
oklch(70.7% 0.145 261.3)
-
Step 500
500
#4484F7
oklch(63.1% 0.184 261)
-
Step 600
600
#256AE6
oklch(55.6% 0.201 261.1)
-
Step 700
700
#1857C8
oklch(49% 0.187 261.2)
-
Step 800
800
#1748A2
oklch(42.7% 0.155 261.3)
-
Step 900
900
#193E80
oklch(37.8% 0.12 260.9)
-
Step 950
950 (this color)
#03153A
oklch(20.8% 0.076 261.2)
#03153A 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) | #001A3B | 0.016 |
| Deuteranopia (no green cones) | #001539 | 0.005 |
| Tritanopia (no blue cones) | #001E24 | 0.059 |
| Achromatopsia (no color) | #171717 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03153A
#03153A
oklch(20.8% 0.076 261.2)
- #221500
#221500
oklch(20.8% 0.043 79.6)
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 #03153A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.026
- Rich Black #0D1B2A ΔE 0.043
- Night Blue #040348 ΔE 0.048
- Dark Navy #000435 ΔE 0.052
- Very Dark Blue #000133 ΔE 0.064
- Dark Navy Blue #00022E ΔE 0.067
- Rich Navy #001219 ΔE 0.068
- Midnight #03012D ΔE 0.068
Use #03153A 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.